Published: Nov 11, 2011 5:20 PM EST

ARLINGTON, Va. (AP) - President Barack Obama is marking Veterans Day at Arlington National Cemetery by helping to place a wreath at the Tomb of the Unknowns.
    
The president and first lady Michelle Obama stood in silence as taps was played outside the tomb on a sunny but chilly autumn morning.
    
Obama is also speaking at Arlington's Veterans Day observance before heading to San Diego for a holiday basketball game aboard the aircraft carrier USS Carl Vinson. The first-ever Carrier Classic pits Michigan State against No. 1 North Carolina on board the ship docked in San Diego.

(Copyright 2011 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)