The terms of a deal between Israel and Hamas for a ceasefire in Gaza and the release of hostages are being finalised, a Palestinian official familiar with the negotiations has told the BBC. It comes as White House National Security Advisor Jake Sullivan said a truce and hostage deal could be done "this week".

But a deal hasn't been reached yet, and there are a number of obstacles that could still scupper the talks in Qatar. The war in Gaza has ground on for more than 15 months, starting on Oct. 7, 2023, when Hamas militants stormed into southern Israel and killed about 1,