Explosions were seen in northern Gaza on Sunday as Israel presses on with its offensive in the enclave.

It comes as an official told The Associated Press that Israel plans to slow or halt humanitarian aid in parts of northern Gaza as it expands its offensive against Hamas.

The official, who spoke on condition of anonymity because they were not authorized to speak to the media, told The Associated Press that Israel will stop airdrops over Gaza City in the coming days and reduce the number of aid trucks arriving as it prepares to evacuate hundreds of thousands of people south.

Israel on Friday ended daytime pauses in fighting to allow aid delivery, describing Gaza City as a Hamas stronghold and alleging that a tunnel network remains in use.

The United Nations and partners have said the pauses, airdrops and other recent measures fell far short of the 600 trucks of aid needed daily in Gaza.

The decision was likely to bring more condemnation of Israel's government as frustration grows in the country and abroad over dire conditions for both Palestinians and remaining hostages in Gaza after nearly 23 months of war.

AP video shot by: Alon Bernstein