At least 28 dead, 250 wounded in Sunni-Alawite clashes in Tripoli (PHOTOS, VIDEO)

At least 28 people were killed and 250 wounded in weeklong clashes between Sunni and Alawite Muslims in Tripoli, Lebanon, according to security officials. The violence is another sign of the Syrian conflict spilling over to Lebanon.

Last night, four Sunnis and one Alawite died in clashes, the Daily Star reported. The casualties raised this week’s death toll to 28.

Fierce fighting has raged in Tripoli since last Sunday, with assailants firing rocket-propelled grenades, mortars and machine guns. The violence is seen as a spillover from the recently intensified fighting between rebels and government forces in Qusayr, Syria, near the border with Lebanon.

A damaged building is seen through a hole in a wall in the Sunni district of Bab al-Tabbaneh following overnight clashes with the Alawite neighbourhood of Jabal Mohsen in the northern Lebanese port city of Tripoli, on May 25, 2013 (AFP Photo / Ghassan Sweidan)

Most of the clashes in Tripoli were between residents of the Sunni-majority Bab el-Tebbaneh district and the Alawite-majority Jabal Mohsen district. A third party in the conflict is the Lebanese Army, which has so far failed to quell the unrest.

Although the clashes subsided in the morning, the area is still reportedly controlled by snipers.

The week-long conflict brought life to a halt in Tripoli, home to 500,000 residents, with schools and shops closed because of the violence.

This is not the first time Tripoli has witnessed an outbreak of violence between Sunnis supporting the Syrian rebels and pro-regime Alawites, the religious branch of Shia Islam to which Syrian President Bashar Assad belongs. The Lebanese Army deployed in the city last October to broker a ceasefire.

A Lebanese gunmen stands guard behind a barricade in the Sunni district of Bab al-Tabbaneh following overnight clashes with the Alawite neighbourhood of Jabal Mohsen in the northern Lebanese port city of Tripoli, on May 25, 2013 (AFP Photo / Ghassan Sweidan)

People inspect the damage after overnight clashes in Al-Koubbeh, in Tripoli May 23, 2013 (Reuters / Omar Ibrahim)

Lebanese army soldiers patrol the Sunni Muslim Bab al-Tebbaneh neighbourhood after being deployed to tighten security, following clashes between Sunni Muslims and Alawites in the port city of Tripoli, northern Lebanon May 21, 2013 (Reuters / Omar Ibrahim)

A Lebanese army soldier walks with his weapon on a patrol after being deployed to tighten security, following clashes between Sunni Muslims and Alawites in the northern port city of Tripoli May 21, 2013 (Reuters / Omar Ibrahim)