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.

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

Israeli forces will maintain their presence in the Jenin refugee camp following a large-scale raid launched last week, Defense Minister Israel Katz announced on Wednesday. The crackdown in the West Bank has now entered its second week.

The law that bans the United Nations agency that aids Palestinian refugees in Gaza went into effect on Wednesday.