Israel completed its withdrawal from the Netzarim Corridor on Sunday, a key road that splits Gaza in half, as part of its commitments under a ceasefire agreement with Hamas.

The 42-day ceasefire is just past its halfway point and the sides are supposed to negotiate an extension that would lead to more Israeli hostages being freed from Hamas captivity. But the agreement is fragile and the extension isn’t guaranteed.

Israeli forces withdrew from a key corridor in Gaza on Sunday, Israeli officials and Hamas said, the latest commitment under a tenuous ceasefire that faces a major test over whether the sides can negotiate its planned extension.

The handover of prisoners scheduled for Saturday will be postponed until Israel “commits to and compensates for the past weeks retroactively,” an Al-Qassam Brigades spokesman said.

The fragile ceasefire's first phase is set to end in three weeks, but Israel and Hamas appear to have made little progress.