President Donald Trump’s foreign envoy Steve Witkoff said Tuesday that he’s hopeful to have a Gaza ceasefire deal by the end of the week, as negotiators make substantial progress working through remaining issues.

Delegations from Israel and Hamas have begun an indirect round of ceasefire talks in Qatar, as Israeli Prime Minister Benjamin Netanyahu heads to Washington to meet Donald Trump. Netanyahu said he thinks his meeting with the US president on Monday should help progress efforts to reach a deal for the release of more hostages and a ceasefire in Gaza.