TEL AVIV, Israel — U.S. President Donald Trump on Sunday urged progress in ceasefire talks in the 20-month war in Gaza between Israel and Hamas, though some weary Palestinians were skeptical about the chances. Israel issued a new mass evacuation order for parts of northern Gaza.

Ron Dermer, a top adviser to Prime Minister Benjamin Netanyahu, was set to travel to Washington this week for talks on a ceasefire, an Israeli official said, and plans were being made for Netanyahu to travel there in the coming weeks, a sign there may be movement on a deal.

Netanyahu was meeting with his security Cabinet on Sunday evening, the official said on condition of anonymity to discuss plans that hadn’t been finalized.

“MAKE THE DEAL IN GAZA. GET THE HOSTAGES BACK!!!” Trump wrote on social media early Sunday. Trump raised expectations Friday by saying there could be an agreement within the next week.

Some Palestinians doubtful of latest efforts: An eight-week ceasefire was reached as Trump took office earlier this year, but Israel resumed the war in March after trying to get Hamas to accept new terms on next steps.

“Since the beginning of the war, they have been promising us something like this: Release the hostages and we will stop the war,” said one Palestinian, Abdel Hadi Al-Hour. “They did not stop the war.”

Israeli attacks continued. An airstrike Sunday evening hit a house sheltering displaced people in the Jabaliya al-Nazla area, killing at least 15, according to Fares Awad, head of the Gaza’s Health Ministry’s ambulance and emergency services in the territory’s north. He said women and children made up over half the dead.

Israel’s military did not comment on the strike, but the area fell under the latest evacuation order.

During a visit to Israel’s internal security service, Shin Bet, Netanyahu said that the Israel-Iran war and ceasefire have opened many opportunities: “First of all, to rescue the hostages. Of course, we will also have to solve the Gaza issue, to defeat Hamas, but I estimate that we will achieve both tasks.”