"A short while ago, an aircraft struck an operational centre in the area of Nur Shams," said an Israeli military statement, without specifying who was targeted or giving a casualty figure.

"Five citizens were killed and others were injured," the official Palestinian news agency Wafa said.

The Times of Israel newspaper said a drone strike was carried out but the military did not say how the attack was staged.

A correspondent for Wafa reported hearing four loud explosions and said the strike targeted a house in the Nur Shams refugee camp.

Violence in the West Bank has surged alongside the war in Gaza, with more than 640 Palestinians killed by Israeli troops and settlers since Hamas's October 7 attack, according to an AFP tally based on Palestinian health ministry figures.

At least 19 Israelis have also died in Palestinian attacks during the same period, according to Israeli officials.

The Nur Shams camp near Tulkarem has been the target of multiple Israeli army operations.

Fourteen people died in one two-day Israeli operation in Nur Shams in April, according to the Palestinian Red Crescent.

In July Israeli forces bulldozed the main street in Nur Shams during a raid that lasted 15 hours.