At least one person was killed as Palestinian security forces clashed with Palestinian fighters and set up checkpoints in the occupied West Bank city of Jenin, residents and medics said, according to Reuters.

Gunshots and explosions could be heard in the city, where friction has risen in recent days between fighters and the Western-backed Palestinian Authority (PA) of Palestinian President Mahmoud Abbas following raids by the PA.

Residents identified the man who was killed as a fighter though none of the factions immediately confirmed his affiliation.

The PA’s security branch said in a statement that its forces were undertaking a security operation to restore law and order to Jenin’s historic refugee camp suburb, a stronghold of Palestinian fighters alienated from the Palestinian leadership.