TRIPOLI, Lebanon - Lebanese supporters of rival factions in Syria's civil war battled overnight in the city of Tripoli in the worst such bout of spillover violence since the conflict started two years ago.
One person was killed and many were wounded as Sunni and Shi'ite Muslim gunmen fired mortar bombs and rocket-propelled grenades at each other in a fifth day of clashes in the coastal city, security sources said on Wednesday.
Syrian activists said the fighting in Tripoli was triggered by an assault on the Syrian border town of Qusair, where fighters from Lebanon's Shi'ite Hezbollah movement are helping Syrian government forces.
At least 33 people have been killed and more than 120 wounded in Tripoli since it started, the security sources said.
Tripoli has suffered sporadic sectarian violence since the Suuni-led uprising against President Bashar Assad broke out in February 2012, but residents said this was the fiercest so far.