Evacuation Update: Superior Mayor Jim Paine lifts evacuation order as of 6:00 am Friday morning. Air quality situation called 'stable'.

LIVE VIDEO

Initial Report:

Emergency crews are on the scene of what is being referred to as an 'emergency situation' at Husky Refinery in Superior, where reports of an explosion have been followed by plumes of smoke coming from the facility, visible from quite a distance.

It was initially reported that there was at least 20 causalities, that number has been updated to 5 according to the Superior Fire Department. Those 5 people were taken to area hospitals.

A representative from the Superior Fire Department told WDIO this is a "serious situation". Roadways near the refinery have been blocked off, and employees have been evacuated from the facility.

Multiple reports of feeling the ground shake or what is being described as an explosion have been shared by people in Superior.

The Superior School District sent a message to parents saying "at this time, there is no reason to evacuate any of the school buildings. We will be keeping all students in the buildings."

We'll have more on this story as it develops.

UPDATES

The explosion occurred just after 10:00 am Thursday morning, and crews have been on the scene since.

Superior Police are asking the public to stay away from the area. They also say there is no evacuation of residents at this time from the area.

UPDATE (12:26 pm): The Superior Police Department has sent out a tweet informing people that the fire has reignited on site but there is no need to evacuate.

Wdio.com is reporting that a contractor that was working on site and said that it sounded like a "sonic boom"

UPDATES: 12:20 PM

Fire re-ignited at refinery, thick black smoke visible at the scene (as seen in our live video above)

1 person is receiving treatment for "significant blast injuries". while the other four people injured are receiving treatment for other, less severe injuries.

Authorities report up to 7 subsequent explosions over the course of the morning since the initial blast just after 10 am.

Reports say the materials burning include crude oil and asphalt. Authorities say they are monitoring air quality and currently say there are no current threats to the public.

Authorities are pushing back safety lines and ask the public not to approach the area. As of right now, there are still no evacuation orders for area schools or for the public, but the public is asked to avoid trying to approach the area to spectate.

UPDATE: 12:54 PM

The fire at the facility is continuing to expand.

Evacuation order given within 10 miles south the refinery, 2 miles north and 3 miles to the east or west of refinery on the east side of Superior. The public is asked to leave your homes or businesses and get to an area primarily due to the heavy smoke.

Students in area schools are being evacuated to Amsoil facility in Superior.

UPDATE: 1:37 PM

Those being evacuated can go to Yellowjacket Union at UWS or Four Corners Elementary School as a safe shelter place.

Essentia Health shared the following information about injuries:

At this time, we are caring for ten patients from this incident. We have five patients at Essentia Health-St. Mary’s Medical Center in Duluth – one with a serious blast injury, four with non-life-threatening injuries.

We have five patients at St. Mary’s Hospital-Superior – all with non-life-threatening injuries.

No other details are available at this time. Essentia Health physicians and staff remain prepared and ready to care for all patients at both St. Mary’s Medical Center and St. Mary’s Hospital-Superior.

UPDATE: 2:25 PM

Essentia in Superior is being evacuated. Once patients are transferred to Duluth, the Superior emergency room will close.

All Superior School District schools are closed and all after school activities are cancelled for today.

UPDATE: 3:00 PM

The Duluth Transit Authority has announced that they are helping with the evacuation of areas in Superior. They are diverting buses used for regular routes to help transport people to safety.

UPDATE: 3:20 PM

The DECC has announced that they are now open as a shelter for anyone that is in the mandatory evacuation zone.

Visit Duluth has a list of Emergency Lodging that you can check out at http://www.visitduluth.com/emergencylodging.

We now have a map of the evacuation area, which can be seen here.

UPDATE: 4:10 PM

Superior Mayor, emergency response officials, and representation from the refinery held a press conference to address the latest information.

Among the updates, the mayor specified that the current evacuation area is 3 miles of the refinery in all directions and 10 miles to the south. The public is asked to leave your homes or businesses and get to an area primarily due to the heavy smoke.

There is no end time for this evacuation order at this time.

Shelter locations for those evacuated include:

4 corners elementary

DECC AMSOIL Arena - Pets allowed at this shelter location

Hermantown Public Safety Building

Crews are "defensively fighting the fire", which means they are preventing the fire from getting away from the current area, but they do not have the resources currently to actively fight the fire. The concern is that fighting the fire without adequate foam and water would not effectively put out the fire.

Asphalt is primarily what is burning, which is why more than just water is needed to fight the blaze.

Douglas County has declared a state of emergency, and asked Maple School District to close Friday, joining Superior schools.

Crews say they don't know how long this fire will burn.

Superior Schools closed Friday

Maple Schools closed Friday

UWS closed Friday

WITC Superior closed Friday

UPDATE: 7:10 PM Superior Mayor Jim Paine announced that the fire is out and that he expects to lift the evacuation order before 9 pm tonight. UPDATE: 9:50 PM From Superior Police: Update: A secondary fire has been ignited due to the ongoing high heat at the scene. Although this fire is currently under control, the mandatory evacuation will remain in effect until further notice. It will be re-evaluated on an hourly basis There is a planned press conference to update the status of this continued precaution tomorrow at 10:00 AM.

While there are no evacuation orders for any parts of Duluth, those that live west of the ore docks in Duluth are being told to avoid being outdoors overnight tonight and to shut windows and shut off HVAC systems that intake outdoor air to minimize exposure to any smoke that may drift from the refinery into Duluth as the wind shifts overnight Thursday night.</s>SUPERIOR, Wis. (AP) - The Latest on a Wisconsin refinery explosion that injured several people (all times local):

Authorities say a smoky refinery fire that forced many residents of Superior, Wisconsin, to evacuate is out.

Douglas County officials posted an update Thursday evening saying the fire is extinguished but asking residents in the evacuation area to stay away from their homes for at least another two hours.

An explosion rocked the Husky Energy oil refinery in Superior on Thursday morning. Authorities earlier said the fire was out, but it later reignited, sending up billowing clouds of thick, black smoke.

It was unclear how many people were being evacuated, but Superior Mayor Jim Paine said most of the city was being evacuated.

At least 11 people were hurt. Hospital officials said only one of the injured was seriously hurt, with what was described as a blast injury. No deaths were reported, and officials said all workers had been accounted for.

Authorities have expanded the evacuation zone around a Wisconsin refinery that was rocked by an explosion and are now saying anyone within a three-mile (five-kilometer) radius should leave.

Douglas County authorities also say those in a 10-mile (16-kilometer) corridor south of the Husky Energy oil refinery in Superior should leave due to smoke coming from the site.

Evacuees are being told to gather at Yellowjacket Union at the University of Wisconsin-Superior or at Four Corners Elementary School in Superior.

It isn't clear how many people the evacuation order will effect. The refinery is in an industrial area, but there's a residential neighborhood within a mile to the northeast. The corridor downwind to the south is sparsely populated.

At least 11 people were injured in the Thursday morning blast. A spokeswoman for Essentia Health says one person was seriously injured, while another nine being treated at Essentia hospitals in Superior and nearby Duluth, Minnesota, have non-life-threatening injuries.

St. Luke's Hospital in Duluth received one patient who is in fair condition.

The number of people injured in a refinery explosion in Wisconsin has grown to at least 11.

Essentia Health spokeswoman Maureen Talarico says five patients are being treated at St. Mary's Medical Center in Duluth, Minnesota. She says emergency room physicians describe those patients as awake and alert.

Talarico says another five are being treated at St. Mary's Hospital in Superior, Wisconsin, where the explosion happened. She says the extent of injuries is unknown.

In Duluth, spokeswoman Jessica Stauber says St. Luke's Hospital is treating one person. She doesn't know the condition of that person.

The explosion at the Husky Energy oil refinery happened Thursday morning. Superior Fire Chief Steve Panger has said there are no known fatalities.

Panger earlier said the fire was out, but Superior police tweeted that the fire has reignited but that there is no need for residents to evacuate.

Authorities now say five people have been taken to hospitals after an explosion rocked a large refinery in Wisconsin.

Superior Fire Chief Steve Panger initially told The Associated Press that six were taken to hospitals in nearby Duluth, Minnesota, after the explosion Thursday at the Husky Energy oil refinery. The Superior Fire Department later updated that number to five.

The fire chief says there are no known fatalities. Authorities don't know the extent of injuries. The fire is out.

A contractor who was inside the building told WDIO television that the explosion sounded like "a sonic boom" and that it happened when crews were working on shutting the plant down for repairs.

Owned by Alberta-based Husky Energy, Wisconsin's only refinery produces gasoline, asphalt and other products.

Several people have been injured in an explosion at a refinery in Wisconsin.

Authorities in Superior say the explosion at the Husky Energy oil refinery happened at about 10 a.m. Thursday. Superior Fire Chief Steve Panger says six people were taken to hospitals in Duluth, Minnesota. He doesn't know the extent of their injuries. Others were walking wounded. There are no known fatalities.

A contractor who was inside the building told WDIO television that the explosion sounded like "a sonic boom" that happened when crews were working on shutting the plant down for repairs.

Panger says the fire was out by 11:20 a.m.

Superior police are advising people to stay away from the area and roads around the refinery have been blocked off. There have been no neighborhood evacuations.</s>This morning, a huge explosion the Husky Energy oil refinery wreaked havoc, causing many to die from their injuries.

Around 10 a.m. this morning, the small town of Superior, Wisconsin was rocked when a tank containing either crude oil or asphalt exploded at the Husky Energy oil refinery.

Pictures from the scene show a fire raging as clouds of black smoke come off many structures on the property. In a statement, Superior Fire Chief Steve Panger told press that multiple causalities that have been reported while also confirming that a number of agencies were responding to the incident. The Grand Forks Herald shares that witnesses claimed to have seen at least seven ambulances on the property in addition to helicopter ambulances.

It is believed that at least 20 people were injured in the blast but thankfully, no fatalities have been reported at this time. The extent of injuries to the victims are currently unknown. Many people who were on the property at the time of explosion describe the sound of the blast as a “sonic boom.”

Newsweek reports that the fire was initially put out around 10:45 a.m. but later the Superior Police Department sent out a tweet saying that the fire had reignited. One man reported seeing a crack in one of the large white storage tanks with a thick, black liquid pouring out of it. He also stated that the smell on the scene could be compared to that of burning rubber.

In a tweet around 12:15 p.m., the Superior Police Department told everyone in the area to steer clear of the area immediately surrounding the refinery but said that it was not necessary for anyone the evacuate. However, another tweet that was just sent out just a few minutes ago states that the Douglas County Emergency Management is asking everyone within a one mile radius of the refinery, 10 miles to the south to evacuate at this time.

According to their website, Husky Energy lists their objectives as “increasing feedstock flexibility to bring the best-priced crude to its refineries, improving the range of its products, and enhancing market access to capture the best returns.” The Chicago Tribune reports that Husky is based out of Alberta, Canada but the company recently purchased the Wisconsin refinery sometime last year. The refinery, which is the only one in Wisconsin, produces gasoline, asphalt, and countless other products.</s>- At least five people were transported to hospitals after an explosion at a Superior, Wisconsin oil refinery Thursday morning. There have been no fatalities reported. The explosion was reported at 10:06 a.m. at the Husky Refinery, which is the former Calumet oil refinery.

The Superior Police Department described the situation as an “evolving scene” in a news release. An initial news release from the Superior Fire Department reported at least 20 “casualties,” but an updated release from Fire Chief Steve Panger said “at least 6 transported – no report on severity of injuries.” The fire chief later confirmed five people were taken to hospitals in Duluth, Minnesota.

According to Fox 21 in Duluth, the explosion “could be felt from blocks away.”

The fire was out and the scene was declared stable by 11:20 a.m., according to the fire chief. But a second fire was reported by Fox 21 Duluth just after noon. The product involved in the explosion and fire is believed to be crude oil or asphalt.

Multiple agencies have responded and rescue personnel are on scene and working to manage the incident. Superior Mayor Jim Paine said he was at fire headquarters and reported nearly all of the injured are accounted for and transported from the scene.

Calgary-based Husky Energy bought the refinery from Indianapolis-based Calumet Specialty Products Partners last year for more than $490 million. The Husky refinery is Wisconsin's only oil refinery, producing gasoline, asphalt and other products.

"Husky Energy is responding to a fire at its Superior Refinery located in Superior, Wisconsin," the company said in a statement. Emergency crews are on site and all workers have been accounted for. Husky’s first priority is the safety of its people, the community and emergency responders. There are injuries, which are being treated at hospital and on site. Regulatory authorities have been notified. Local air quality is being monitored. There is no danger to the public or local residents at this time. Further information will be provided as it becomes available."

Husky Fire - Press Release 1: At approximately 10:06 today Superior Fire Department responded to a report of an explosion at Husky Refinery in Superior. There is a report of multiple casualties. Initial reports are at least 20 casualties transported. Multiple agencies have responded. More information to come when available.

Husky Fire - Press Release 2: At approximately 10:06 today Superior Fire Department responded to a report of an explosion at Husky Refinery in Superior. There is a report of multiple casualties. Initial reports are at least 6 transported – No report on severity of injuries. Multiple agencies have responded. Fire reported to be out. Reported a smaller tank explosion. Product is believe to be crude or asphalt. Walking wounded still be accounted for. Scene stable. More information to come.</s>A tank containing crude oil or asphalt exploded at a large refinery in Wisconsin on Thursday, injuring several people and prompting fire officials to order a large-scale evacuation.

At least 11 people are being treated for injuries at local hospitals, and so far no fatalities have been reported. The total amount of injured could be as high as 20 however, including walking wounded who were not taken to the hospital.

The explosion at the Husky Energy oil refinery happened at about 10am, Superior Fire Chief Steve Panger said, and it was put out a little more than an hour later.

Superior police later tweeted that the fire had reignited. Now an evacuation is underway for an area 10 miles south, two miles north, and three miles east and west of the facility. It's unclear how many people are impacted by the evacuation. The area to the south of the plant is mostly rural.

Husky Energy is responding to a fire at its Superior Refinery located in Superior, Wisconsin. Emergency crews are on site and all workers have been accounted for. Husky’s first priority is the safety of its people, the community and emergency responders. There are injuries, which are being treated at hospital and on site. Regulatory authorities have been notified. Local air quality is being monitored. There is no danger to the public or local residents at this time. Further information will be provided as it becomes available.

The Superior School District evacuated children to n Amsoil plant in Superior. Photos posted to Twitter showed long lines outside the plane as parents rushed to pick up their children.

Police blocked roads around the refinery in Superior, which is home to about 27,000 people and borders Minnesota to the north and the tip of Lake Superior.

Essentia Health spokeswoman Maureen Talarico said five people injured in the explosion are being treated at St. Mary's Medical Center, a Level II trauma center in Duluth, Minnesota. She said emergency room physicians described those patients as 'awake and alert'. According to WDIO, one of the patients was being treated for serious blast injuries while the four other have non-life-threatening injuries.

Another five are being treated at St. Mary's Hospital in Superior, Talarico said. She said the extent of those injuries is unknown.

In Duluth, St. Luke's Hospital was treating one worker and did not expect to receive any more, spokeswoman Jessica Stauber said. She did not have a condition for that person.

Panger said a small tank containing either crude oil or asphalt exploded in the refinery.

A contractor who was inside the building told WDIO television that the explosion sounded like 'a sonic boom' and that it happened when crews were working on shutting the plant down for repairs.

No damage estimate was available.

Calgary-Alberta-based Husky Energy refinery bought the refinery from Indianapolis-based Calumet Specialty Products Partners last year for over $490 million. It's Wisconsin's only refinery, and it produces gasoline, asphalt and other products.

Husky has about 180 employees and said in a statement on Thursday that all workers are accounted for.

'Husky’s first priority is the safety of its people, the community and emergency responders. There are injuries, which are being treated at hospital and on site.

'Regulatory authorities have been notified. Local air quality is being monitored. There is no danger to the public or local residents at this time,' the statement said.

The refinery, which dates back to the early 1950s, has a processing capacity of around 50,000 barrels per day and a storage capacity of 3.6 million barrels of crude and products. It processes both heavy crude from the Canadian tar sands in Alberta and lighter North Dakota Bakken crude.</s>SUPERIOR, Wis. (AP) — The Latest on a Wisconsin refinery explosion that injured several people (all times local):

Authorities are ordering residents to evacuate their homes near a Wisconsin refinery that was rocked by an explosion.

Superior police tweeted Thursday afternoon that the Douglas County Emergency Management Agency has issued an evacuation order. Police say anyone within a one-mile (two-kilometer) radius of the Husky Energy oil refinery needs to immediately evacuate.

It was not immediately clear how many people were affected by the evacuation order. The refinery is in an industrial area, but there's a residential neighborhood within a mile to the northeast.

Neither the police department nor the Douglas County Emergency Management Agency immediately responded to phone messages.

The blast happened Thursday morning, injuring at least 11 people. Authorities have said there are no known fatalities.

The number of people injured in a refinery explosion in Wisconsin has grown to at least 11.

Essentia Health spokeswoman Maureen Talarico says five patients are being treated at St. Mary's Medical Center in Duluth, Minnesota. She says emergency room physicians describe those patients as awake and alert.

Talarico says another five are being treated at St. Mary's Hospital in Superior, Wisconsin, where the explosion happened. She says the extent of injuries is unknown.

In Duluth, spokeswoman Jessica Stauber says St. Luke's Hospital is treating one person. She doesn't know the condition of that person.

The explosion at the Husky Energy oil refinery happened Thursday morning. Superior Fire Chief Steve Panger has said there are no known fatalities.

Panger earlier said the fire was out, but Superior police tweeted that the fire has reignited but that there is no need for residents to evacuate.

Authorities now say five people have been taken to hospitals after an explosion rocked a large refinery in Wisconsin.

Superior Fire Chief Steve Panger initially told The Associated Press that six were taken to hospitals in nearby Duluth, Minnesota, after the explosion Thursday at the Husky Energy oil refinery. The Superior Fire Department later updated that number to five.

The fire chief says there are no known fatalities. Authorities don't know the extent of injuries. The fire is out.

A contractor who was inside the building told WDIO television that the explosion sounded like "a sonic boom" and that it happened when crews were working on shutting the plant down for repairs.

Owned by Alberta-based Husky Energy, Wisconsin's only refinery produces gasoline, asphalt and other products.

Several people have been injured in an explosion at a refinery in Wisconsin.

Authorities in Superior say the explosion at the Husky Energy oil refinery happened at about 10 a.m. Thursday. Superior Fire Chief Steve Panger says six people were taken to hospitals in Duluth, Minnesota. He doesn't know the extent of their injuries. Others were walking wounded. There are no known fatalities.

A contractor who was inside the building told WDIO television that the explosion sounded like "a sonic boom" that happened when crews were working on shutting the plant down for repairs.

Panger says the fire was out by 11:20 a.m.

Superior police are advising people to stay away from the area and roads around the refinery have been blocked off. There have been no neighborhood evacuations.</s>SUPERIOR, Wis. (AP) — The Latest on a Wisconsin refinery explosion that injured several people (all times local):

Authorities say a smoky refinery fire that forced many residents of Superior, Wisconsin, to evacuate is out.

Douglas County officials posted an update Thursday evening saying the fire is extinguished but asking residents in the evacuation area to stay away from their homes for at least another two hours.

An explosion rocked the Husky Energy oil refinery in Superior on Thursday morning. Authorities earlier said the fire was out, but it later reignited, sending up billowing clouds of thick, black smoke.

It was unclear how many people were being evacuated, but Superior Mayor Jim Paine said most of the city was being evacuated.

At least 11 people were hurt. Hospital officials said only one of the injured was seriously hurt, with what was described as a blast injury. No deaths were reported, and officials said all workers had been accounted for.

A convention center in Minnesota has opened to accept people forced from their homes by a smoky fire at a nearby Wisconsin oil refinery.

Executive director Chelly Townsend says people were trickling in to the Duluth Entertainment Convention Center after doors opened late Thursday afternoon.

Townsend says the center could comfortably handle 5,000 people, but could shelter up to 7,000 if needed.

Superior Mayor Jim Paine says most of the northwestern Wisconsin city is being evacuated as black clouds billow from the Husky Energy oil refinery. At least 11 people were hurt in an explosion at the refinery Thursday morning, one seriously.

Schools in Superior and nearby Maple, Wisconsin, have called off classes Friday.

Federal investigators are headed to a Wisconsin refinery hit by an explosion and fire.

Burning asphalt at the Husky Energy refinery in Superior, Wisconsin, has prompted the evacuation of much of the town of about 27,000. Local officials say the evacuations are a precaution as a plume of noxious black smoke drifts southward from the plant.

A four-person team from the U.S. Chemical Safety Board will investigate. The board makes safety recommendations after serious chemical incidents.

At least 11 people were hurt in Thursday’s explosion, one seriously.

Authorities have expanded the evacuation zone around a Wisconsin refinery that was rocked by an explosion and are now saying anyone within a three-mile (five-kilometer) radius should leave.

Douglas County authorities also say those in a 10-mile (16-kilometer) corridor south of the Husky Energy oil refinery in Superior should leave due to smoke coming from the site.

Evacuees are being told to gather at Yellowjacket Union at the University of Wisconsin-Superior or at Four Corners Elementary School in Superior.

It isn’t clear how many people the evacuation order will effect. The refinery is in an industrial area, but there’s a residential neighborhood within a mile to the northeast. The corridor downwind to the south is sparsely populated.

At least 11 people were injured in the Thursday morning blast. A spokeswoman for Essentia Health says one person was seriously injured, while another nine being treated at Essentia hospitals in Superior and nearby Duluth, Minnesota, have non-life-threatening injuries.

St. Luke’s Hospital in Duluth received one patient who is in fair condition.

The number of people injured in a refinery explosion in Wisconsin has grown to at least 11.

Essentia Health spokeswoman Maureen Talarico says five patients are being treated at St. Mary’s Medical Center in Duluth, Minnesota. She says emergency room physicians describe those patients as awake and alert.

Talarico says another five are being treated at St. Mary’s Hospital in Superior, Wisconsin, where the explosion happened. She says the extent of injuries is unknown.

In Duluth, spokeswoman Jessica Stauber says St. Luke’s Hospital is treating one person. She doesn’t know the condition of that person.

The explosion at the Husky Energy oil refinery happened Thursday morning. Superior Fire Chief Steve Panger has said there are no known fatalities.

Panger earlier said the fire was out, but Superior police tweeted that the fire has reignited but that there is no need for residents to evacuate.

Authorities now say five people have been taken to hospitals after an explosion rocked a large refinery in Wisconsin.

Superior Fire Chief Steve Panger initially told The Associated Press that six were taken to hospitals in nearby Duluth, Minnesota, after the explosion Thursday at the Husky Energy oil refinery. The Superior Fire Department later updated that number to five.

The fire chief says there are no known fatalities. Authorities don’t know the extent of injuries. The fire is out.

A contractor who was inside the building told WDIO television that the explosion sounded like “a sonic boom” and that it happened when crews were working on shutting the plant down for repairs.

Owned by Alberta-based Husky Energy, Wisconsin’s only refinery produces gasoline, asphalt and other products.

Several people have been injured in an explosion at a refinery in Wisconsin.

Authorities in Superior say the explosion at the Husky Energy oil refinery happened at about 10 a.m. Thursday. Superior Fire Chief Steve Panger says six people were taken to hospitals in Duluth, Minnesota. He doesn’t know the extent of their injuries. Others were walking wounded. There are no known fatalities.

A contractor who was inside the building told WDIO television that the explosion sounded like “a sonic boom” that happened when crews were working on shutting the plant down for repairs.

Panger says the fire was out by 11:20 a.m.

Superior police are advising people to stay away from the area and roads around the refinery have been blocked off. There have been no neighborhood evacuations.</s>The Latest on a Wisconsin refinery explosion that injured several people (all times local):

The number of people injured in a refinery explosion in Wisconsin has grown to at least 11.

Essentia Health spokeswoman Maureen Talarico says five patients are being treated at St. Mary's Medical Center in Duluth, Minnesota. She says emergency room physicians describe those patients as awake and alert.

Talarico says another five are being treated at St. Mary's Hospital in Superior, Wisconsin, where the explosion happened. She says the extent of injuries is unknown.

In Duluth, spokeswoman Jessica Stauber says St. Luke's Hospital is treating one person. She doesn't know the condition of that person.

The explosion at the Husky Energy oil refinery happened Thursday morning. Superior Fire Chief Steve Panger has said there are no known fatalities.

Panger earlier said the fire was out, but Superior police tweeted that the fire has reignited but that there is no need for residents to evacuate.

Authorities now say five people have been taken to hospitals after an explosion rocked a large refinery in Wisconsin.

Superior Fire Chief Steve Panger initially told The Associated Press that six were taken to hospitals in nearby Duluth, Minnesota, after the explosion Thursday at the Husky Energy oil refinery. The Superior Fire Department later updated that number to five.

The fire chief says there are no known fatalities. Authorities don't know the extent of injuries. The fire is out.

A contractor who was inside the building told WDIO television that the explosion sounded like "a sonic boom" and that it happened when crews were working on shutting the plant down for repairs.

Owned by Alberta-based Husky Energy, Wisconsin's only refinery produces gasoline, asphalt and other products.

Several people have been injured in an explosion at a refinery in Wisconsin.

Authorities in Superior say the explosion at the Husky Energy oil refinery happened at about 10 a.m. Thursday. Superior Fire Chief Steve Panger says six people were taken to hospitals in Duluth, Minnesota. He doesn't know the extent of their injuries. Others were walking wounded. There are no known fatalities.

A contractor who was inside the building told WDIO television that the explosion sounded like "a sonic boom" that happened when crews were working on shutting the plant down for repairs.

Panger says the fire was out by 11:20 a.m.

Superior police are advising people to stay away from the area and roads around the refinery have been blocked off. There have been no neighborhood evacuations.</s>
• Multiple people were injured in an explosion at a Husky Energy oil refinery in Superior, Wisconsin, on Thursday.
• Fire officials said six people were taken to hospitals, but their conditions are unclear.
• So far, there are no known fatalities.

At least several people have been injured in an explosion at a refinery in Wisconsin.

Authorities in Superior say the explosion at the Husky Energy oil refinery happened at about 10 a.m. Thursday. Superior Fire Chief Steve Panger says six people were taken to hospitals in Duluth, Minnesota. He doesn’t know the extent of their injuries. Others were walking wounded. There are no known fatalities.

Local outlets, including The Duluth News Tribune, reported that as many as many as 20 people were injured after the blast.

A contractor who was inside the building told WDIO television that the explosion sounded like “a sonic boom” that happened when crews were working on shutting the plant down for repairs.

Panger says the fire was out by 11:20 a.m.

Superior police are advising people to stay away from the area and roads around the refinery have been blocked off. There have been no neighborhood evacuations.</s>* HUSKY ENERGY INC - IS RESPONDING TO A FIRE AT ITS SUPERIOR REFINERY LOCATED IN SUPERIOR, WISCONSIN

* HUSKY ENERGY - THERE IS NO DANGER TO PUBLIC OR LOCAL RESIDENTS AT THIS TIME

* HUSKY ENERGY INC SAYS THERE ARE INJURIES RELATED TO INCIDENT AT SUPERIOR REFINERY, WHICH ARE BEING TREATED AT HOSPITAL AND ON SITE Source text for Eikon: Further company coverage:
An explosion occurs in the Husky Oil Refinery in Superior, Wisconsin. Five people are reportedly injured. Local residents have been ordered to evacuate.