"It's where I get my strength". "And it did not matter what color you were, or where you were from", said a tearful Magaly Lemagne, who lost her brother, Port Authority of NY and New Jersey Police Officer David Lemagne.
The United States paused for a moment of silence to remember the 9/11 attacks on the World Trade Center and the Pentagon.
Jose Jimenez/Primera Hora/Getty ImagesPolicemen and firemen run away from the huge dust cloud caused as the World Trade Center's Tower One collapses after terrorists crashed two hijacked planes into the twin towers, September 11, 2001 in New York City.
Magaly Lemagne, who lost her policeman brother David Prudencio Lemagne, said: "Our country came together that day".More news: Fed Vice Chairman Stanley Fischer to Step Down
At 8:46 a.m. President Donald Trump and his wife, Melania, emerged from the White House in Washington, D.C. and stood at attention while a bell was rung one time.
In a ceremony marking the 16th anniversary of the 9/11 terror attacks, Vice President Mike Pence addressed the family and friends of the victims of United Flight 93 and the hundreds of citizens attending a somber service in Pennsylvania.
Meanwhile, at Ground Zero in NY, victims' relatives marked the anniversary by reading out the names of those who died. "And it did not matter what colour you were, or where you were from".