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.

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.

The Israeli military launched a major offensive in the West Bank on January 21 aimed at rooting out Palestinian armed groups from the Jenin area, which has long been a hotbed of militancy.