A car bomb has destroyed part of the United Nations headquarters in Baghdad, and officials say at least one person was killed and dozens were injured.
Among those hurt in the bombing was the chief U.N. representative in Iraq, Sergio Vieira de Mello.
Casualties were evacuated by U.S. military ambulances and helicopters, while U.S. soldiers searched the collapsed section of the building for other victims.
The explosion hit about 4:30 in the afternoon in Baghdad, outside the Canal Hotel, which houses the U.N. headquarters in Iraq.
The United Nations has 300 people based in Baghdad, many of them working on humanitarian aid programs.
It was the second major car bombing in the Iraqi capital this month. On August seventh an explosion outside the Jordanian embassy killed 17 people. The U.S. Federal Bureau of Investigation has joined the investigation of that bombing.
Information for this report is provided by AP, AFP and Reuters.