An Israeli airstrike on a school sheltering displaced persons in Gaza City killed at least 15 Palestinians, hours after two strikes in the occupied West Bank killed nine including a local Hamas commander, Hamas said, Reuters reports.

The Israeli military said the first of two West Bank airstrikes hit a vehicle in a town near the city of Tulkarm, targeting a fighter cell it said was on its way to carry out an attack.

A Hamas statement said one of those killed was a commander of its Tulkarm brigades, while its ally Islamic Jihad claimed the other four men who died in the strike as its fighters.

Hours later, a second airstrike in the area targeted another group of fighters who had fired on troops, Israel’s military said, during what it described as a counterterrorism operation in Tulkarm.

Palestinian news agency WAFA said four people had died in that strike, and Hamas said all nine of those killed in the two Israeli attacks in the West Bank were fighters.