At least 38 people have been killed in the eastern Libya city of Benghazi as Libyan government forces clashed with armed Islamist militants on Saturday and Sunday.
Egypt's state media is also reporting the deaths of 23 Egyptians in the Libyan capital, Tripoli, after a rocket hit their home near the airport, where deadly fighting between rival militias is entering a third week.
Libya is facing the worst surge in violence since the 2011 war that ousted leader Moammar Gadhafi.
The United States, the United Nations and Turkey have removed diplomatic staff.
In statements issued in the past few days, the U.S. State Department and Britain's Foreign and Commonwealth Office also recommended their citizens in Libya depart immediately by commercial means.