By Barbara Starr
The FBI has sent an investigative team to the site of last month's deadly attack on the U.S. diplomatic outpost in Benghazi, Libya, a senior administration official told CNN Thursday.
Arriving late Wednesday and working through Thursday, the team examined the outpost, located in the city of Benghazi, the official said.
A U.S. military security force accompanied the FBI team to the site and provided security for them as they traveled there. Officials said it was an indication of the ongoing security concerns in the region.
The September 11 consulate attack killed U.S. Ambassador to Libya J. Christopher Stevens and three other Americans.
The incident fueled increased global scrutiny of the North African nation, led by a government that toppled dictator Moammar Gadhafi last year.
It also sparked political debate over whether the Obama administration has been forthcoming about its understanding of events.
The FBI visit to Benghazi had been stalled for more than three weeks because of security concerns at the site.
FBI and military officials have said they would need proper military protection in case of another attack on the U.S. Consulate.
The official described the support as both visible and more covert, suggesting the use of intelligence assets to monitor communications and the surrounding areas. The military team was "relatively small," the official said.