U.S. marks 9/11 with somber tributes

Americans looked back on 9/11 Tuesday with tears and somber tributes as President Donald Trump hailed “the moment when America fought back” on one of the hijacked planes used as weapons in the deadliest terror attack on U.S. soil.

Section:Gallery

Tue., Sept. 11, 2018

Audience members attend the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa. President Donald Trump is marking 17 years since the worst terrorist attack on U.S. soil by visiting the Pennsylvania field that became a Sept. 11 memorial.

Evan Vucci Ap
One World Trade Center appears through the open ceiling of the Oculus, part of the World Trade Center transportation hub in New York, Tuesday, Sept. 11, 2018, the anniversary of 9/11 terrorist attacks. The transit hall ceiling window was opened just before 10:28 a.m., marking the moment that the North Tower of the World Trade Center collapsed on September 11, 2001.

Craig Ruttle Ap
A member of the military walks the grounds of the National 9/11 Pentagon Memorial before the start of the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018.

Pablo Martinez Monsivais Ap
Soldiers march away at the conclusion of the September 11 Remembrance Ceremony at Fort Gordon, Ga., Tuesday, Sept. 11, 2018.

Michael Holahan Ap
An audience member with a "Let's Roll" tattoo stands for the national anthem during the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa.

Evan Vucci Ap
President Donald Trump and first lady Melania Trump, stand along the September 11th Flight 93 memorial, Tuesday, Sept. 11, 2018, in Shanksville, Pa., escorted by

Evan Vucci Ap
Family members of Flight 93 listens during the September 11th Flight 93 Memorial Service, Tuesday, Sept. 11, 2018, in Shanksville, Pa.

Evan Vucci Ap
Members of the military take up their positions at the National 9/11 Pentagon Memorial before the start of the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018.

Pablo Martinez Monsivais Ap
Vice President Mike Pence, center, speaks during the September 11th Pentagon Memorial Observance at the Pentagon on the 17th anniversary of the September 11th attacks, Tuesday, Sept. 11, 2018. Also on stage is Defense Secretary Jame Mattis and Joint Chiefs Chairman Gen. Joseph Dunford. Tuesday, Sept. 11, 2018.

Pablo Martinez Monsivais Ap
Episcopal Day School pays homage to those who lost their lives during the September 11 terrorist attacks on the World Trade Center in New York City as the Episcopal Day School Boy Scouts present a special outdoor flag raising tribute ceremony Tuesday, Sep. 11, 2018, marking the 17th anniversary of the 9/11 attacks.

Miguel Roberts Ap