Unknown militants shot and wounded a senior member of Palestinian President Mahmoud Abbas' Fatah party in the West Bank city of Jenin, security sources said Sunday.

Shami al-Shami, also a member of the Palestinian Legislative Council (PLC), got two gunshots in his right leg, the sources added.

The shooting came at a time of intensive campaign by forces of the Palestinian National Authority (PNA) to restore order in the city, which has slid into militia chaos for months.

The security campaign was intensified after militants opened fire at the house of the city's governor in May. The governor, Qadoura Mousa, died of heart attack hours after the attack.

Talal Diwkat, the new governor of the city, said an investigation has been opened into the shooting against Shami.

Jenin has been a hub of violence spurred by smuggling, clannish rivalries and differences inside Fatah-affiliated armed groups.