One person was killed and 10 others were wounded when rival factions clashed in the port of Tripoli, Lebanese residents said.
The city, 50 miles north of Beirut, has long been the scene of clashes between the pro-Syrian Arab Democratic Party and anti-Syrian Popular Resistance Organization.
The fighting followed a bomb explosion Tuesday outside the Tripoli office of the Druze Progressive Socialist Party. Two people died in the blast; 10 were wounded. Further killing was reported from the Shouf Mountains east of Beirut, where Druze gunmen killed 10 people and wounded 13 others in renewed Muslim-Christian violence.