A cautious calm prevailed in the northern city of Tripoli on Monday morning despite intermittent gunfire and sniper attacks that targeted the international highway, the state-run National News Agency reported.
Traffic has almost come to a standstill and most shops, schools and universities remained shut, NNA said.
The city's rival neighborhoods witnessed overnight violent clashes that involved the use of machineguns, rocket propelled grenades and mortars that even reached Tripoli's safer areas.
Nine people, including a soldier, were killed and around 71 were injured on Sunday, the agency added.
The latest round of gunbattles resumed on Saturday when a resident of Jabal Mohsen was shot in his feet.
A similar sectarian attack had taken place on Thursday.
The fighting is raging between Bab al-Tabbaneh, which is mostly Sunni and backs the revolution against Syrian President Bashar Assad, and Jabal Mohsen, whose residents are of Assad's Alawite sect.