US marks 9/11 with somber tributes, new monument to victims

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 participated in a remembrance ceremony at the World Trade Center Tuesday. The ceremony was centered on reading the names of the dead.

Nearly 3,000 people died when hijacked planes slammed into the trade center, the Pentagon and a field near Shanksville on Sept. 11, 2001.

There were several moments of silence to mark pivotal moments of that day. Those included 8:46 am- the time the first plane hit the North Tower. 9:03 am- the time the second plane hit the South Tower. 9:37 am- the time Flight 77 hit the Pentagon. 9:59 am- the time the South Tower fell. 10:03 am- the time Flight 93 crashed in Pennsylvania. 10:28 am- the time the North Tower fell.

President Donald Trump and first lady Melania Trump observed the day at the 9/11 memorial near Shanksville, Pennsylvania.

A new tower honoring victims was dedicated there Saturday. Vice President Mike Pence attended a ceremony at the Pentagon.

Since the last anniversary, a truck attack on a nearby bike path in Manhattan killed eight people. Months later, there was a botched pipe bombing in a subway passageway near Times Square.