TRIPOLI - The most intense clashes for years rocked Tripoli for a second night and continued into Wednesday morning, witnesses in the Libyan capital said, after Monday's killing of a major militia leader set off fighting between rival factions.

Libyan officials say clashes between heavily armed militias rocked the Libyan capital, with gunfire and explosions heard across the city following the killing of a powerful warlord

The United Nations mission in Libya called for de-escalation Monday after fighting erupted in the North African nation’s capital.