Residents have spoken of uninterrupted explosions in northern and eastern parts of the city. Israeli troops have also returned to blow up buildings in the refugee camp of Jabalia further north. Sixty-four people were killed and nearly 300 injured in Israeli attacks in the past 24 hours, the territory's Hamas-run health ministry said.

It said the overall number of those killed since Israel launched its massive campaign to defeat Hamas had risen to 62,686 - with another 157,951 injured. Israel's military launched an operation in Gaza in response to the Hamas-led attack on southern Israel on 7 October 2023, in which about 1,200 people were killed and 251 others were taken hostage.

Israel's Prime Minister Benjamin Netanyahu has vowed to defeat Hamas and defied international criticism over his plans to expand the war. Some 60,000 reservists are being called up to take part in the Israeli operation. While it has yet to begin in earnest, Israeli attacks on Gaza City have continued unabated - with the areas of Zeitoun and Shejayia hit from the air overnight into Sunday, as tank fire targeted Sabra neighbourhood.

The Israel Defence Forces (IDF) have also said that troops have returned to the Jabalia area in the past few days. "The troops' activity enables the expansion of the fighting to additional areas and prevents Hamas terrorists from returning and operating in these areas," the IDF said. Separately, the World Health Organization (WHO) announced on Sunday that a staff member had been released by the IDF after being held in Gaza since 21 July. There are no further details about the identity of the WHO worker or the reasons for his detention. (BBC)