President Bush has begun a series of observances of the fifth anniversary of the September 11th, 2001, terrorist attacks against the United States.
On Sunday the president and First Lady Laura Bush laid wreaths at an area known as "ground zero," the place where the World Trade Center towers once stood. The towers collapsed after two hijacked airliners piloted by al-Qaida terrorists slammed into them.
On Monday morning in New York, Mr. Bush will meet with firefighters and police officers. He and the emergency personnel will mark moments of silence at the exact times the airliners hit the twin towers.
Afterward, the president will visit locations where the other two hijacked airliners crashed -- the Pentagon near Washington and an open field in Shanksville, Pennsylvania.
The president made no public remarks in New York, but he is scheduled to speak to the nation from the White House on Monday evening.
Information for this report is provided by AP and Reuters.