The State Department warns of terrorism, civil unrest, kidnapping, armed conflict, and crime.
Terrorist and militia groups are of particular concern for the threats they pose to travelers, including detaining them at random and without access to legal or embassy resources
The advisory says:
"Outbreaks of violence between competing armed groups can occur with little warning and have the potential to impact US citizens. The capital, Tripoli, and other cities, such as Surman, Al-Jufra, Misrata, Ajdabiya, Benghazi, Sabha, and Dernah, have witnessed fighting among armed groups, as well as terrorist attacks. Hotels and airports frequented by Westerners have been caught in the crossfire. Even demonstrations intended to be peaceful can turn confrontational and escalate into violence."