Israel says it has identified two of the dead bodies returned by Hamas on Thursday as Ariel and Kfir Bibas – but tests show another body that was expected to be that of their mother Shiri is not hers – and does not match any other Israeli hostage.

An Israeli official says the bodies of the youngest and one of the oldest captives seized by Hamas during the attack that ignited the war in Gaza are expected to be returned on Thursday

In what was set to be the largest swap under January’s ceasefire agreement, six hostages were freed, but the release of some 600 Palestinian prisoners was delayed. It comes after Shiri Bibas’s body was returned by Hamas.