Senators Barack Obama and John McCain made a special joint appearance in New York to commemorate the seventh anniversary of the 9/11 terrorist attacks on the United States.
The two presidential candidates put their political differences aside, shook hands and walked together into the pit where the Twin Towers fell. They also talked with family members of the victims and placed roses in a reflecting pool in memoriam.
This is the second presidential campaign since 9/11 and the first year that both Democratic and Republican candidates have appeared at Ground Zero on the anniversary.
Almost 3,000 people perished in New York, at the Pentagon and in Pennsylvania on this day seven years ago.