Massive tornadoes hit Kansas and Oklahoma as Midwest and South hit hard by storm A 79-year-old man has been reported dead in Shawnee, Oklahoma in decimated trailer park At least 21 people have been reported injured across the state Oklahoma governor declares state of emergency in 16 counties Severe weather has left a violent trail of destruction through the Midwest and South, bringing high winds, heavy rains and tornadoes - and at least one person has been killed. Numerous twisters were spotted on Saturday evening near Rozel, a sparsely populated area in central Kansas. They were also reported to the south in parts of Oklahoma and Iowa. Lightning bolts lit up the sky as the storm moved through. Devastation: A flag flies among the debris of a mobile home after a tornado struck a mobile home park in Shawnee, Oklahoma, where a man was killed on Sunday Destruction: Marlena Hodson walks out of her home as her grandsons, Campbell Miller, 10, and Dillon Miller, 13, at right, help her sort through belongings after a tornado damaged her home in Carney, Oklahoma Damage: Residents of Edmond, Oklahoma survey storm damage from a tornado that hit their neighborhood Loss: Jerry Dirks, at right, hugs her friend Earlene Langley after a tornado hit Dirks' home just south of Carney Oklahoma Extreme weather: Two tornados were spotted in Kansas on Sunday with residents warned to take cover in sturdy buildings Monster: Two tornadoes hit Kansas on Sunday as severe weather warning s were issued across the Plain states Response: At least 21 people were injured across Oklahoma as the storm tore through the region on Sunday Lost and found: Alli Christian, left, returns Jessica Wilkinson's dog Bella to her after finding her among the wreckage of Wilkinson's home A National Weather Service advisory warned: 'You could be killed if not underground or in a tornado shelter.' Complete destruction of neighborhoods, businesses and vehicles will occur. Flying debris will be deadly to people and animals. At least four separate tornadoes touched down in central Oklahoma on Sunday afternoon, including one near the town of Shawnee, 35 miles southeast of Oklahoma City, that laid waste to much of a trailer park. That's where a 79-year-old man was found dead. Recovery: Nancy and Jason Townsend sort through belongings after their home was hit by a tornado in Carney, Oklahoma Wild: The tornado was ripping across the plains of Kansas Nothing left: Leah Hill, pictured left, of Shawnee, Oklahoma, is hugged by friend Sidney Sizemore, as they look through Hill's scattered belongings from her home which was wrecked by a tornado 'You can see where there's absolutely nothing, then there are places where you have mobile home frames on top of each other, debris piled up,' Pottawatomie County Sheriff Mike Booth said after surviving damage in the Steelman Estates Mobile Home Park. 'It looks like there's been heavy equipment in there on a demolition tour. Twister: A tornado touches down southwest of Wichita, Kansas near the town of Viola 'It's pretty bad. It's pretty much wiped out,' he said. Across the state, 21 people were injured, not including those who suffered bumps and bruises and chose not to visit a hospital, said Keli Cain, a spokeswoman for the Oklahoma Department of Emergency Management. Booth said six at Steelman Estates were hurt. On Interstate 40, tractor-trailers were blown off the road, and one was seen hanging over the highway's overpass. Dozens of homes were damaged by the other tornadoes that touched down in Oklahoma, but emergency officials had no immediate reports of injuries caused by any of them, including the first of the afternoon that hit Edmond, a suburb north of Oklahoma City, before making its way toward Tulsa, 90 miles to the northeast. 'I knew it was coming,' said Randy Grau, who huddled with his wife and two young sons in their Edmond home's safe room when the tornado hit. He said he peered out his window as the weather worsened and believed he saw a flock of birds heading down the street. The destruction in the wake of the punishing storm led Oklahoma Gov Mary Fallin to declare a state of emergency for 16 counties. Rescue: Shawnee firefighters assist driver Marco Corr as he is taken from the cab of his overturned truck along I-40 on the west side of Shawnee, Oklahoma Wiped out: A residential area near Shawnee is pictured after a tornado tore through the area, destroying several homes Devastation: Decimated homes in the path of a massive twister are seen in Shawnee, Oklahoma Blown away: Friends and neighbors help out a resident in Lyon County after a tornado ripped the roof off a home just south of Emporia, Kansas The National Weather Service in Wichita put in place tornado warnings for East Central Kingman County, Southern Sedgwick County and Northwester Sumner County in the state. A massive twister touched down near Wichita Mid-Continent Airport just before 4pm local time. A severe thunderstorm, capable of becoming a tornado, happened at 3:30pm and moved Northeast at 35mph, bringing ping-pong ball sized hail, according to weather.com. Those who live in mobile homes were warned that there was extreme risk of their properties being destroyed. Residents were warned to take cover in an interior room on the lowest floor of a solid building and stay back from windows. People were warned to take care because flying debris could be deadly as was the risk of falling trees. Wreckage on the roads: A tornado caused extensive damage along I-40 at the junction with U.S. 177 on the west side of Shawnee Dire: Overturned tractor-trailers are seen on Interstate 40 near Shawnee, Oklahoma, including one that was left hanging over an overpass Raging: High winds and thunderstorms with the threat of tornadoes hit Kansas this weekend Ominous: The sky darkened as the tornadoes ripped across the open plains along with ping-pong ball sized hail Picking up the pieces: June McFarland reacts to the first sight of storm damage in rural Osage, Iowa after the powerful weather system moved through the area It comes just days after devastating Texas tornadoes which killed six people and injured dozens. The National Weather Service says 15 tornadoes touched down in north Texas on Wednesday. Initial estimates put that number at 10, however the NWS added five more throughout Thursday afternoon. In its preliminary findings, the National Weather Service rated the tornado that hit Hood County Wednesday night an EF-4, which is labeled 'devastating' by the Enhanced Fujita Scale. The scale ranges from from FO, defined as a gale, to F5, defined as incredible. Debris: Pieces of what's left of a mobile home are scattered in the park Gone: Only the frame of a mobile home remains after a twister hit the home park near Dale, Oklahoma The Storm Prediction Center had been warning about severe weather in the region since Wednesday, and on Friday, it zeroed in on Sunday as the day the storm system would likely pass through. 'They've been calling for this all day,' Edmond resident Anita Wright said after riding out the twister in an underground shelter. She and her husband Ed emerged from their hiding place to find uprooted trees, downed limbs and damaged gutters in their home. In Katie Leathers' backyard, the family's trampoline was tossed through a section of fence and a giant tree uprooted. 'I saw all the trees waving, and that's when I grabbed everyone and got into two closets,' Leathers said. All these trees just snapped. Terrifying: Those living in mobile homes were warned to take shelter in sturdier buildings