Egypt's airstrikes came in response to the mass beheadings of 21 Egyptian Christians by IS militants in Libya. The Libyan government has called for the US-led coalition in Syria and Iraq to turn its attentions to Libya.
Abu Anas al-Libi, wanted for 15 years, was captured in 2013 in Tripoli and brought to New York where he faced charges of helping kill 224 people, including a dozen Americans, in the 1998 bombings of US embassies in Kenya and Tanzania.
The cease-fire agreement, reached late Monday night and mediated by the Tripoli City Council, would mark a rare pause in two weeks of fighting in the capital that's killed nearly 100 people and wounded 400, health officials say.
A Libya oil depot fire spread uncontrolled Monday, after the oil depot was caught in the middle of militias battling for control of an airfield. The Libya oil depot fire had spread to a second depot by Monday afternoon, according to the government.
On Saturday, diplomats from the US embassy in Libya were evacuated to Tunisia under US military escort as fighting between rival militias grew close to the embassy. The State Department also issued travel warnings for Libya.