Stephanie Bunker, spokeswoman for the U.N. Office for the Coordination of Humanitarian Affairs, said Sunday that 12 staffers had left the North African country and were now in neighboring Tunisia.
She says the representatives from various U.N. agencies arrived in Tripoli shortly after U.N. humanitarian chief Valerie Amos signed an agreement with the Libyan government on April 10 to allow U.N. agencies into the Libyan capital.
U.N. international staffers remain in the rebel stronghold of Benghazi, in eastern Libya.
The evacuation comes hours after Libyan leader Moammar Gadhafi reportedly escaped a NATO missile strike that a government spokesman said killed one of his sons and three young grandchildren.