The deal between Israel and Hamas to release hostages being held in Gaza and begin a ceasefire was officially signed by negotiators in Doha on Thursday, according to two sources familiar with the issue.

Israel and Hamas have agreed a Gaza ceasefire and hostage deal following meetings with Qatar's prime minister, a source briefed on the talks has told the BBC. There was no confirmation from the Israeli government or Hamas, but a Hamas official earlier told the BBC it had approved a draft from Qatari, US and Egyptian mediators.