Israel on Saturday said it had killed a World Central Kitchen worker it accused of taking part in the Hamas-led attack that started the war in Gaza last year, in the second Israeli strike to kill workers affiliated with the aid group.

World Central Kitchen, a U.S.-based relief group, said in a statement on Saturday that an Israeli airstrike had hit a vehicle carrying “colleagues,” but that it “had no knowledge that any individual in the vehicle had alleged ties” to the Hamas-led attack. The group added that it was pausing operations in Gaza, where a dire humanitarian crisis is unfolding for some two million people.

A spokeswoman for the group, Linda Roth, said that three World Central Kitchen contractors were killed in the strike. “To the best of our knowledge, no WCK team members are affiliated with Hamas,” she said in an email.

The Israeli military said that the person it targeted had taken part in the Oct. 7 attack on Kibbutz Nir Oz, an Israeli village near the Gaza border where dozens of people were abducted. He had been monitored by Israeli “intelligence for a while and was struck following credible information regarding his real-time location,” the military said.

It added that it had targeted “a civilian unmarked vehicle and its movement on the route was not coordinated for transporting of aid.”

Ms. Roth said that the vehicle was not branded, and that the aid group was investigating the situation. The Israeli military did not immediately respond to questions about the two aid workers who were not accused of taking part in the Oct. 7 attack.