An armored vehicle flying an Israeli flag fired tear gas and rubber bullets at Palestinians awaiting the release of hundreds of prisoners held by Israel in the West Bank.

As drones buzzed overhead, the group scattered.

The tear gas followed the circulation of a flyer warning that anyone supporting what it called “terrorist organizations” risked arrest.

Israel’s military did not respond to questions about the flyer, which The Associated Press obtained on site.

While major questions remain about the future of Hamas and Gaza, the exchange of hostages and prisoners raised hopes for ending the deadliest war ever between Israel and the militant group.

The ceasefire is also expected to be accompanied by a surge of humanitarian aid into Gaza, parts of which are experiencing famine.

U.S. President Donald Trump arrived in the region, where he plans to discuss the U.S.-proposed deal and postwar plans with other leaders.