Three Palestinians were shot dead by Israeli forces in the occupied West Bank on Thursday, the Palestinian health ministry said, with an Israeli official saying they had opened fire first.

The Palestinian ministry announced the "martyrdom" of three men shot by Israeli forces in Jaba, near the flashpoint northern city of Jenin.

Israeli National Security Minister Itamar Ben Gvir praised the undercover officers for "taking out the despicable terrorists, who opened fire at our fighters". 

The health ministry identified the dead men as Sufyan Fakhoury, 26, Ahmed Fashafsha, 22, and Nayef Malaysha, 25. It did not provide further details.

Just two days ago, Abdel Fatah Hussein Khroushah, 49, and five other Palestinians were killed during intense fighting with Israeli forces in Jenin, a scene of frequent clashes in the northern West Bank.

Since the start of the year, the conflict has claimed the lives of 71 Palestinian adults and children, including militants and civilians.

Thirteen Israeli adults and children, including members of the security forces and civilians, and one Ukrainian civilian have been killed over the same period, according to an AFP tally based on official sources from both sides.

Mourners march with the body of Abdel Fatah Hussein Khroushah, a 49-year-old Palestinian. Photo: AFP

Israeli police said special forces accompanied by soldiers had been in Jaba to arrest suspects involved in shooting attacks against soldiers in the area, including Fakhoury and Fashafsha. It said the pair were operatives of the militant group Islamic Jihad.

"During the operation, shots were fired at the border police undercover officers from the wanted men's car. Border police undercover officers responded with fire, and killed the three armed men in the car," police said, adding that Malaysha was also a suspected militant.

"A number of guns and explosive devices were found in the vehicle," the police statement said.

In a statement, Islamic Jihad condemned Israel for the "heinous assassination" in Jaba.