(NBC) WASHINGTON — President Donald Trump observed a solemn moment of silence Monday at the White House, his first presidential remembrance of the 9/11 terror attacks.

The president and first lady stood stoically on the White House South Lawn, bowing their heads in honor of the moment that the first plane hit the North tower of New York’s Twin Towers. White House staffers joined them on the lawn.

Note: Read our discussion guidelines before commenting.