The consulate where the American ambassador to Libya was killed on Tuesday is an “interim facility” not protected by the contingent of Marines that safeguards embassies, POLITICO has learned.

Ambassador Chris Stevens was killed with three other Americans in an attack on the U.S. consulate in the city of Benghazi, where Libyan rebels ousted strongman Moammar Qadhafi last year.

Marine Corps spokeswoman Capt. Kendra Motz said that Marines were not posted to the consulate, unlike the embassy in the capital, Tripoli.

A defense official told POLITICO on Wednesday that the Pentagon is sending an elite team of about 50 additional Marines, called a Fleet Antiterrorism Security Team, to reinforce the embassy. . .