A series of explosions tore through the city of Jenin, in the occupied West Bank, sending plumes of smoke into the sky.

The Israeli military blew up several buildings in the occupied West Bank on Sunday in a series of simultaneous explosions that the Palestinian state news agency said had leveled around 20 buildings in the Jenin refugee camp.

Throngs of people eagerly waited on Thursday for more than 100 Palestinian prisoners who were released from Israel in exchange for hostages held in Gaza.

The sudden expansion of Israeli security operations in the West Bank has killed at least 10 people and follows the start of the delicate ceasefire process in Gaza, by which Israeli hostages are released in stages and will also see the gradual withdrawal of Israeli forces.

As Israel withdraws some of its troops from Gaza during a cease-fire there, it has turned attention to another Palestinian territory — in particular a city with a history of militant activity.

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.”

Prime Minister Benjamin Netanyahu said the assault on Jenin would be “extensive and significant,” as the military erected new checkpoints across the West Bank.