The Libyan government says they've arrested 50 suspects in the killing of Ambassador Chris Stevens and three other members of the U.S. diplomatic team, and the suspects are believed to have ties to al-Qaeda.
FOX's Greg Palkot reports from Tunis, Tunisia that the U.S. is investigating separately:
In nearby Libya, the terror manhunt is on for the killers of U.S. Ambassador Chris Stevens and three other Americans. While the FBI is telling us the investigation has begun, we are still waiting for a hard confirm that the agents are on the ground. They'll be heading for Benghazi, a dangerous place.
Already in Libya: the Rapid Response Team of Marines - some 50 Marines; off the coast, two U.S. Navy destroyers; overhead, surveillance drones.
And yes, the Libyan government is now reportedly saying that they have some suspects in custody.
WATCH more on the safety of U.S. embassies abroad: