Israeli forces killed 11 people in a multi-day raid in the occupied West Bank, the Palestinian health ministry said Thursday.

The latest death was a 17-year-old boy who the ministry said was shot in the chest by the Israeli army in Jenin.

In addition to 11 killed by Israeli forces, Palestinian health officials said a sick 13-year-old boy also died after Israeli forces prevented him from reaching hospital.

Israeli troops launched their incursion into the northern city of Jenin and its refugee camp early Tuesday and were still present on Thursday afternoon.

The military said Wednesday that Israeli forces had seized dozens of weapons and dismantled multiple bomb-making laboratories.

Four soldiers were wounded in "controlled explosions" or by friendly fire, the army said Wednesday without commenting on the Palestinian casualties.

Speaking Thursday at the site where an Israeli drone strike killed three people, a resident told AFP the trio were unarmed civilians.

At a home damaged during the ongoing raid, a boy said Israeli soldiers stole money, gold and mobile phones.

Israel has occupied the West Bank since the 1967 Arab-Israeli war, and in recent months troops have carried out repeated deadly raids on Jenin, with the casualties including militants and children.

Jenin camp is home to more than 23,000 people, according to the United Nations, and militants have a strong presence there.

The Islamist group Hamas — which Israel is battling in the Gaza Strip — on Wednesday called the Jenin raid a "desperate attempt to extinguish the flame of resistance".

More than 280 Palestinians have been killed by Israeli forces or settlers in the West Bank since the war in Gaza erupted on October 7, health officials say.

Over the same period, 18,787 people have been killed in the Israeli offensive on Gaza according to the health ministry in the Hamas-run territory.

The war broke out with an attack by Hamas militants on southern Israel, which Israeli officials say killed around 1,200 people.

Most of those killed in both Israel and the Palestinian territories have been civilians.