Mokhtar Belmokhtar, an Algerian militant known as 'The Uncatchable,' had been supposedly killed several times before. Libyan officials said the US airstrike over this weekend had killed him.
The past weekend on the Mediterranean was one of the busiest so far as British, Swedish, Spanish, and Italian ships worked to save people trying to reach Europe from Libya.
The European Union is seeking UN approval for using military force against human traffickers in Libya. Critics say targeting vessels isn't a comprehensive response to the tide of asylum seekers.
Under Qaddafi, Libya worked closely with Europe to harshly stem the flow of migrants across the Mediterranean. But the country's chaos has upended that.
Western powers are concerned that the fractured nation in North Africa is fertile ground for Islamic State militants.
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.
Gunmen attacked the hotel lobby and a car exploded shortly afterward in the hotel parking lot. At least eight people were killed in the armed assault.
Canadian officials have identified Michael Zehaf-Bibeau as the gunman killed in a shooting at Parliament. He had been blocked from traveling abroad amid concerns he was attempting to join up with extremists.
Reports suggest that Libya could be headed toward a prolonged civil war, with Islamist militias controlling the airport in the capital and the parliament forced to meet in the eastern city of Tobruk.
Rival militias are battling for control of Libya's international airport, which is closed after rocket fire destroyed most of the planes on the ground.
Khalifa Haftar survived a suicide bomb attack Wednesday. He is battling Islamist militias backed by allies in Libya's parliament. Meanwhile, a Red Cross official was shot dead in Sirte.