The Israeli army has besieged the Al-Shifa hospital in Gaza amid heavy clashes, Xinhua New Agency reported on Saturday, citing Palestinian security sources.

"Tanks and military vehicles of the Israeli army have been encircling the vicinity of the Al-Shifa hospital from all main axes for hours, coinciding with heavy artillery shelling in the area," Palestinian security sources said.

There has been no immediate response from the Israeli military.

Operations in the hospital complex, the largest in the Gaza Strip, were suspended on Saturday after it ran out of fuel, according to health authorities in Gaza.

Muhammad Abu Salmiya, the director of the Al-Shifa hospital, told Al Jazeera that the hospital has no power, internet, water or medical supplies.

(With input from agencies)