The US has been talking with Hamas through an American intermediary in Doha this week in hopes of brokering an Israel-Gaza ceasefire agreement, according to a source familiar with the matter, as US officials say President Donald Trump is growing increasingly frustrated with Israel’s handling of the conflict.

Israel says it has begun sending troops into Gaza as part of a larger ground operation aimed at pushing Hamas to demilitarize and release the remaining hostages it holds.

Israeli Prime Minister Benjamin Netanyahu said on Monday that Israel would control all of Gaza and would prevent the militant Islamist group Hamas from looting aid.