Tripoli: One person was injured on Thursday in a grenade blast in an area of the northern city of Tripoli that has seen bloody clashes between two rival factions, a security official said.

The grenade was thrown in the Jabal Mohsen and Bab al-Tebbaneh region where 23 people were killed in June and July in battles between Sunni Muslim supporters of the government and their Damascus-backed rivals.

Tensions between the two communities had eased in the past few weeks after both sides signed a reconciliation accord and the army had deployed heavily.

But concerns mounted this week after a car bomb left seven people dead and nearly 30 people injured.

No one has claimed responsibility for the attack. -Agencies