At least two people were killed and six others wounded in running gun battles in the flashpoint northern Lebanese city of Tripoli, a security source told AFP on Sunday.
The source identified the dead as 22-year-old Mohammed Yussef, from the Alawite Jabal Mohsen area, and a 13-year-old boy from the neighboring Sunni area of Bab el-Tebbaneh.
One person was wounded in Jabal Mohsen and five others were wounded in Bab el-Tebbaneh, the source said.
“Lebanese military forces are in the area and responding to the sources of gunfire,” he added.
The largely Sunni city is home to a small community of Alawites, an offshoot of Shiite Islam to which Syrian President Bashar al-Assad belongs.
Violence has regularly broken out between the two communities as the conflict in neighbouring Syria -- pitting Assad’s regime against a Sunni-led opposition -- raises tensions.
The fighting erupted as Syrian troops launched an assault against the rebel stronghold of Qusayr, in Syria’s central province of Homs.
Clashes kill two in Lebanon’s Tripoli, security source says