A woman drips water on a bouquet of flowers at the North Pool during a ceremony marking the 17th anniversary of the terrorist attacks on the United States on Tuesday, Sept. 11, 2018, in New York. (AP... (Associated Press) 
 
 A woman drips water on a bouquet of flowers at the North Pool during a ceremony marking the 17th anniversary of the terrorist attacks on the United States on Tuesday, Sept. 11, 2018, in New York. (AP Photo/Mark Lennihan) (Associated Press) 
 
 NEW YORK (AP) — The Latest on the commemoration of the Sept. 11 terror attacks (all times local): 
 
 11 a.m. 
 
 President Donald Trump says the nation is recalling "the moment when America fought back" during a Pennsylvania ceremony marking the Sept. 11 terror attacks. 
 
 Trump said Tuesday during a somber remembrance at the Flight 93 memorial in Shanksville, Pennsylvania, that the fallen "joined the immortal ranks of American heroes." 
 
 The president is honoring those killed 17 years ago at the site where the fourth airliner crashed after 40 passengers and crew members realized what was happening and tried to storm the cockpit. He says the fallen "took control of their destiny and changed the course of history." 
 
 Trump listened as the names of the victims were read aloud, followed by the tolling of bells. 
 
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 10:50 a.m. 
 
 Vice President Mike Pence has told family members of the 184 people killed at the Pentagon on 9/11 that the nation still grieves with them. 
 
 Pence spoke Tuesday at the Pentagon Memorial. 
 
 He said it's important that each new generation know what happened. 
 
 Pence recalled the heroism of service members and civilians working in the Pentagon that day. 
 
 They evacuated and went back into the building again and again to rescue survivors. 
 
 He says the terrorists "hoped to break our spirit and they failed." 
 
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 10:10 a.m. 
 
 The outpouring of emotion on the 9/11 anniversary includes a poignant message from New York's Finest. 
 
 A tweet on Tuesday by the New York Police Department's Midtown North Precinct talks about the day Americans' world changed "forever." 
 
 It urges: "Never miss a chance to let those held dearest know your love for them." 
 
 Victims' relatives, survivors, rescuers and dignitaries are gathered on New York's World Trade Center memorial plaza to remember the deadliest terror attack on American soil. 
 
 President Donald Trump and first lady Melania Trump are at the 9/11 memorial near Shanksville, Pennsylvania. Vice President Mike Pence is at the Pentagon. 
 
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 9:25 a.m. 
 
 President Donald Trump has arrived in Pennsylvania to remember those killed 17 years ago in the Sept. 11 terrorist attacks. 
 
 Trump and his wife, Melania, arrived at the airport in Johnstown on Tuesday shortly after the time that hijackers flew an airplane into New York's World Trade Center on Sept. 11, 2001, and the Pentagon. 
 
 Trump is delivering remarks at the Flight 93 memorial in Shanksville, Pennsylvania. It's where the fourth airliner crashed after the 40 passengers and crew members realized what was happening and tried to storm the cockpit. 
 
 In all, nearly 3,000 people were killed in the attacks in New York, Washington and Pennsylvania. 
 
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 9:15 a.m. 
 
 The names of those lost in the Sept. 11 terrorist attacks are being solemnly recited at the World Trade Center in New York. 
 
 The ceremony on Tuesday to commemorate the 17th anniversary included moments of silence and tolling bells. Some tearful readers mentioned how much they miss their loved ones. 
 
 Victims' relatives, survivors, rescuers and dignitaries are gathered on the memorial plaza to remember the deadliest terror attack on American soil. 
 
 President Donald Trump and first lady Melania Trump are at the 9/11 memorial near Shanksville, Pennsylvania. Vice President Mike Pence is at the Pentagon. 
 
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 8:50 a.m. 
 
 The commemoration of the 17th anniversary of the Sept. 11 terror attacks has begun at the World Trade Center in New York with a moment of silence and tolling bells. 
 
 Victims' relatives, survivors, rescuers and dignitaries were gathered on the memorial plaza where the twin towers once stood as the ceremony started at 8:46 a.m. That is the time when a hijacked plane slammed into the World Trade Center's north tower. 
 
 Then victims' loved ones began reading the names of the nearly 3,000 people killed when four hijacked planes crashed into the trade center, the Pentagon and a Pennsylvania field on Sept. 11, 2001. 
 
 President Donald Trump and first lady Melania Trump are at the 9/11 memorial near Shanksville, Pennsylvania. 
 
 Vice President Mike Pence is attending a ceremony at the Pentagon. 
 
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 8:20 a.m. 
 
 Families of people who died during the Sept. 11 terrorist attacks are gathering at New York's World Trade Center site. 
 
 Thousands of victims' relatives, survivors, rescuers and others are expected at Tuesday's ceremony in Lower Manhattan. 
 
 Debra Sinodinos (sih-noh-DEE'-nohs) was there to honor her cousin Peter Carroll, a New York City firefighter. 
 
 Their extended family gathered for the ceremony, including two of Peter's sons — one who's a firefighter and another who's in training. 
 
 Sinodinos says it's better to commemorate the day there than to sit around "being depressed." 
 
 She's pleased with the construction of the memorial and buildings at the World Trade Center. She calls the progress "amazing." 
 
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 12 a.m. 
 
 Americans are commemorating the Sept. 11 terror attacks with somber tributes, volunteer projects and a new monument to victims. 
 
 Thousands of victims' relatives, survivors, rescuers and others are expected at Tuesday's ceremony at the World Trade Center. 
 
 President Donald Trump and first lady Melania Trump plan to join an observance at the 9/11 memorial near Shanksville, Pennsylvania. A new tower honoring victims was dedicated there Saturday. 
 
 Vice President Mike Pence is attending a ceremony at the Pentagon. 
 
 Nearly 3,000 people died when hijacked planes slammed into the trade center, the Pentagon and a field near Shanksville on Sept. 11, 2001. 
 
 Since the last anniversary, a truck attack on a nearby bike that killed eight people. Months later, there was a botched pipe bombing in a subway passageway near Times Square. ||||| President Trump marked the 17th anniversary of the Sept. 11, 2001, terrorist attacks on American soil by remembering the victims and heroes of Flight 93 in Shanksville, Pennsylvania. 
 
 "Today, we mourn their loss, we share their story, and we commemorate their incredible valor," Mr. Trump said Tuesday of the Americans who died on that fateful flight 17 years ago. 
 
 "Your tears are not shed alone, for they are shared grief with an entire nation," the president added. 
 
 An open field in the rural area of Pennsylvania was the final resting place for passengers aboard United Airlines Flight 93 that September morning after three planes had already been flown into the World Trade Center in New York and the Pentagon in Arlington, Virginia. Passengers and crew stormed the cockpit after realizing their plane was being used in the next attack. It crashed in the open area killing all on board. 
 
 A new monument added to the 2,200-acre memorial in honor of the heroes aboard that flight was dedicated on Sunday. 
 
 Mr. Trump said the field is now a "monument to American defiance." 
 
 "America's future is not written by our enemies," he said. "America's future is written by our heroes. As long as this monument stands, as long as this memorial endures, brave patriots will rise up in America's hours of need and they, too, will fight back." 
 
 Mr. Trump largely stuck to his prepared remarks Tuesday, although earlier in the day he blasted the Justice Department and Russia probe in tweets. ||||| President Donald Trump and first lady Melania Trump stand as "Taps" is played during a ceremony to mark the anniversary of the Sept. 11 terrorist attacks, Monday, Sept. 11, 2017, at the Pentagon. (AP... (Associated Press) 
 
 ARLINGTON, Va. (AP) — Leading his first commemoration of the solemn 9/11 anniversary, President Donald Trump said Monday that "the living, breathing soul of America wept with grief" for each of the nearly 3,000 lives that were lost on that day 16 years ago. 
 
 Addressing an audience at the Pentagon, one of three sites attacked on Sept. 11, 2001, Trump used the anniversary to sternly warn terrorists that "America cannot be intimidated." He said those who try are destined to join a long list of vanquished enemies "who dared to test our mettle." 
 
 Trump and first lady Melania Trump observed a moment of silence at the White House on Monday at the exact moment that a hijacked airplane was slammed into the World Trade Center. The Trumps bowed their heads and placed their hands over their hearts as "Taps" rang out across the South Lawn. They were surrounded by White House aides and other administration officials in what has become an annual day of remembrance. 
 
 Nearly 3,000 people were killed when hijackers flew commercial airplanes into New York's World Trade Center, the Pentagon and a field near Shanksville, Pennsylvania. 
 
 Trump, a native New Yorker who was in the city on 9/11, said the attack was worse than the Japanese assault on Pearl Harbor during World War II because it targeted civilians. He vowed that it would never be repeated. 
 
 "The terrorists who attacked us thought they could incite fear and weaken our spirit," Trump said later at the Pentagon, where he was joined by Defense Secretary Jim Mattis and Gen. Joseph Dunford, chairman of the Joint Chiefs of Staff. "But America cannot be intimidated and those who try will join a long list of vanquished enemies who dared test our mettle." 
 
 He said that when America is united, "no force on earth can break us apart." 
 
 Trump also offered words of comfort the many whose loved ones perished in the attacks. 
 
 "For the families with us on this anniversary, we know that not a single day goes by when you don't think about the loved one stolen from your life. Today, our entire nation grieves with you," Trump said. Later, he said "the living, breathing soul of America wept with grief for every life taken on that day." 
 
 Vice President Mike Pence was representing the administration a ceremony at the 9/11 memorial in Shanksville. 
 
 Trump has a checkered history with 9/11. He frequently uses the attack to praise the city's response but has also made unsubstantiated claims about what he did and saw on that day. 
 
 Trump often lauds the bravery of New York police officers, firefighters and other emergency responders who rushed to the Twin Towers to help as an example of the resilience of the city where he made a name for himself. 
 
 But he has also criticized President George W. Bush's handling of the attacks, accusing Bush of failing in his duty to keep Americans safe. 
 
 Trump has made dubious claims about Sept. 11, particularly saying when talking about Muslims that "thousands of people were cheering" in Jersey City, New Jersey, across the Hudson River from lower Manhattan, as the towers collapsed. There is no evidence in news archives of mass celebrations there by Muslims. 
 
 Trump also said he lost "hundreds of friends" in the attack and that he helped clear rubble afterward. Trump has not provided the names of those he knew who perished in the attack, but has mentioned knowing a Roman Catholic priest who died while serving as a chaplain to the city's fire department. 
 
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 Superville reported from Washington. Associated Press writer Ken Thomas in Washington also contributed to this report. 
 
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 Follow Darlene Superville on Twitter: http://www.twitter.com/dsupervilleap ||||| President Barack Obama bows as a moment of silence is observed during a memorial ceremony at the Pentagon in Washington to commemorate the 15th anniversary of the 9/11 terrorist attacks, Sunday, Sept.... (Associated Press) 
 
 NEW YORK (AP) — The Latest on commemorations marking the 15th anniversary of the Sept. 11 attacks (all times local): 
 
 12:35 p.m. 
 
 Some family members reciting the names of loved ones killed on 9/11 have spoken about how their losses have inspired them to do good for others. 
 
 Jerry D'Amadeo was 10 years old when he lost his father, Vincent Gerard D'Amadeo. He was the opening speaker. He said he worked this summer with children at Sandy Hook Elementary School in Newtown, Connecticut, where 26 children and adults were massacred in 2012. 
 
 He said, "Sometimes the bad things in our lives put us on the path to where we should be going." 
 
 Ryan Van Riper said he planned to honor his slain grandmother, Barbara Shaw, by serving the country. 
 
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 11:30 a.m. 
 
 Hillary Clinton's campaign says the Democratic presidential nominee left the 9/11 anniversary ceremony in New York early after feeling "overheated." 
 
 The campaign says she's "feeling much better." 
 
 Clinton spokesman Nick Merrill says in a statement Sunday that the former secretary of state attended the morning ceremony for 90 minutes "to pay her respects and greet some of the families of the fallen. 
 
 He adds, "During the ceremony, she felt overheated so departed to go to her daughter's apartment, and is feeling much better." 
 
 The statement offered no additional details. 
 
 Republican presidential nominee Donald Trump also departed the ceremony before its conclusion. 
 
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 10:25 a.m. 
 
 President Barack Obama says the nation will never forget the lives of those killed in the Sept. 11 attacks. 
 
 Obama said at a Pentagon memorial service that he is inspired by the resilience of the victims' families. 
 
 He quoted Scripture: "Let not steadfast love and faithfulness forsake you. Bind them around your neck. Write them on the table of your heart." 
 
 Obama also praised America's diversity and urged Americans not to let their enemies divide them. He called the day "difficult" but one that "reveals the love and faithfulness in your hearts and in the heart of our nation." 
 
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 10:08 a.m. 
 
 Hundreds are gathering for the 9/11 anniversary observance in Pennsylvania where one of the planes hijacked by terrorists crashed in a field 15 years ago. 
 
 They gathered at Flight 93 National Memorial in Shanksville as ceremonies were also taking place Sunday in New York and at the Pentagon. Forty passengers and crew members died in the Pennsylvania crash. 
 
 For the first time, the Shanksville ceremony is being held outside the visitor center that opened last year rather than at the granite mall that runs along the crash site. The names of the victims will be read and bells ring in their memory. 
 
 The United Airlines flight was heading from Newark, New Jersey to San Francisco when it crashed after passengers and crew members fought the terrorists for control of the plane. 
 
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 This story has been corrected to show Pennsylvania center opened last year, not this year. 
 
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 9:22 a.m. 
 
 The government's homeland security secretary says the United States is safer now than it was in 2001 against what he calls "another 9/11-style attack." 
 
 But Jeh (jay) Johnson — making the rounds of the Sunday news shows — says the country is "challenged when it comes to the prospects of the lone-wolf actor, the homegrown violent extremists." 
 
 He tells NBC's "Meet the Press" that requires "a new, whole of government response and public participation and vigilance." 
 
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 8:55 a.m. 
 
 Hillary Clinton and Donald Trump are attending the Sept. 11 remembrance ceremony in New York. 
 
 The presidential candidates greeted supporters on Sunday as they entered the downtown Manhattan memorial. They're not expected to make public remarks at the event, and both have promised to suspend campaign activities to mark the 15th anniversary of the attacks. 
 
 Clinton — a former New York senator — has frequently highlighted her efforts, including in a campaign ad released Friday, to aid those affected by the World Trade Center collapse. 
 
 Trump — a New York real estate mogul — has said he donated construction equipment to the recovery effort and gave $100,000 to the memorial after touring it for the first time earlier this year. 
 
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 8:46 a.m. 
 
 The commemoration of the 15th anniversary of 9/11 has begun at ground zero. 
 
 Sunday's ceremony began with a moment of silence and tolling bells at 8:46 a.m., the time when a terrorist-piloted plane slammed into the World Trade Center's north tower. 
 
 After the silent period, victims' relatives began reading the names of the nearly 3,000 people killed when four hijacked aircraft hit the trade center, the Pentagon and a Pennsylvania field. It was the deadliest terror attack on American soil. 
 
 President Barack Obama will speak at an observance at the Pentagon. Hundreds of people also are expected at a ceremony at the Flight 93 National Memorial in Shanksville, Pennsylvania. 
 
 Democratic presidential nominee Hillary Clinton and Republican rival Donald Trump are attending the anniversary ceremony at the World Trade Center. 
 
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 8:20 a.m. 
 
 Family members of those lost on Sept. 11 are arriving at ground zero for the ceremony marking the 15th anniversary of the attacks. 
 
 Some are going into National September 11 Museum, which is open only to victims' families until Sunday afternoon, when the public will be allowed to enter. 
 
 About an hour before the official commemoration start, police officers in uniform and bagpipers rehearsed part of the ceremony involving a display of the US flag. 
 
 As it has every year, the remembrance will mainly focus on the reading of the names of those killed in the attacks. It will also include moments of silence and the tolling of bells. 
 
 Other ceremonies are being held at the Pentagon and at the Flight 93 National Memorial in Shanksville, Pennsylvania. 
 
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 12:20 a.m. 
 
 Relatives and loved ones of 9/11 victims will convene Sunday to mark the 15th anniversary of the terror attacks. 
 
 Organizers have planned some additional music and readings to mark the milestone anniversary at ground zero. 
 
 But they are keeping traditions that have made the ceremony a constant in how America remembers Sept. 11, even as ground zero and the nation changes. 
 
 The customs include moments of silence and tolling bells, an apolitical atmosphere and the reading of the nearly 3,000 names of those killed in New York, at the Pentagon and near Shanksville, Pennsylvania. 
 
 President Barack Obama will speak at an observance at the Pentagon. Hundreds of people also are expected at a ceremony at the Flight 93 National Memorial in Shanksville.
– President Trump marked the 17th anniversary of the 9/11 attacks on Tuesday with a speech at the memorial where one of the planes went down in Shanksville, Pa. "America's future is not written by our enemies," said Trump, per CBS News. "America's future is written by our heroes. As long as this monument stands, as long as this memorial endures, brave patriots will rise up in America's hours of need and they, too, will fight back." The president, who was accompanied by first lady Melania, called it a "monument to American defiance." Elsewhere: In New York City: The city paused at 8:46am, the moment the first plane struck the North Tower of the World Trade Center. Thousands gathered at the memorial at Ground Zero to pay their respects, and the Daily News has details. The ceremony included the annual recitation of victims' names, along with recollections of loved ones. At the Pentagon: VP Mike Pence spoke to families of the 184 killed at the Pentagon in the attacks, saying the terrorists "hoped to break our spirit and they failed," per the AP. Praising Rudy: In the morning, Trump tweeted praise of an ally. "Rudy Giuliani did a GREAT job as Mayor of NYC during the period of September 11th," wrote the president. "His leadership, bravery and skill must never be forgotten. Rudy is a TRUE WARRIOR!" Trump also retweeted an image of him signing a proclamation calling Tuesday "Patriot Day 2018" in honor of the approximately 3,000 people who died in the attacks.