Israel’s defense minister has announced a series of raids that he says are targeting “terrorism” in the occupied West Bank, as Palestinian officials warned of a “man-made disaster.”

At least 10 people have been killed in the raids, and more than 40 wounded, according to the Palestinian Health Ministry. Dozens have been arrested, Palestinian officials told the Wafa news agency.

A Palestinian official said hundreds of people began leaving their homes in a flashpoint area of the West Bank on Thursday as Israeli forces pressed a deadly operation there