Israeli airstrikes killed at least 38 Palestinians in Gaza, hospital officials told the Associated Press on Sunday, as Israel's military said it has struck over 100 targets in the embattled enclave in the past day.

Two Palestinian sources familiar with the matter said the Israeli delegation didn't have a sufficient mandate to reach an agreement with Hamas.

Ending the war in Gaza and securing humanitarian aid access topped the agenda on the first day of negotiations between Hamas and Israel in Qatar over a potential hostage deal. The morning session concluded without results but with significant optimism that an agreement could be reached within 24 hours or by the end of the week.