Israeli troops arrested 55 Palestinian “terror operatives” across the West Bank overnight, hours after a truce came into effect in the Gaza Strip, the army said Thursday.

“A total of 55 terror operatives, who are affiliated with different terror groups have been detained. Among those arrested were a number of senior level operatives,” a statement said, with Israeli public radio saying it included members of Hamas and Islamic Jihad.

It said the swoop was related to “recent terrorist and violent activity” in the West Bank, which has seen days of widespread protests and clashes over Israel’s relentless bombing campaign targeting militants in the Gaza Strip.

The violence in and around Gaza ended at 1900 GMT on Wednesday when an Egyptian-brokered ceasefire agreement came into force.