Israeli forces pounded the suburbs of Gaza City overnight from the air and ground, destroying homes and driving more families out of the area.
Residents of Sheikh Radwan, one of the largest neighbourhoods of Gaza City, said the territory had been under Israeli tank shelling and airstrikes throughout Saturday and yesterday, forcing families to seek shelter in the western parts of the city.
The Israeli military has gradually escalated its operations around Gaza City over the past three weeks, and on Friday it ended temporary pauses in the area that had allowed for aid deliveries, designating it a "dangerous combat zone".
"They are crawling into the heart of the city where hundreds of thousands are sheltering, from the east, north, and south, while bombing those areas from the air and ground to scare people to leave," said Rezik Salah, a father of two, from Sheikh Radwan.
Local health authorities said Israeli gunfire and strikes killed at least 30 people yesterday, including 13 who tried to get food from near an aid site in central Gaza. The Israeli military said it was not aware of casualties near humanitarian aid distribution points in central Gaza.
An Israeli official said Netanyahu's security cabinet was to convene late yesterday to discuss the next stages of the planned offensive to seize Gaza City.
A full-scale offensive is not expected to start for weeks. Israel says it wants to evacuate the civilian population before moving more ground forces in.
Netanyahu confirmed yesterday that Israeli forces had targeted Abu Ubaida, the spokesperson of Hamas' armed wing. Defence Minister Israel Katz said that Abu Ubaida was killed. Two Hamas officials contacted by Reuters did not respond to requests for comment.
Gaza health authorities said 15 people, including five children, were killed in the attack on a residential building in the heart of Gaza City.
Abu Ubaida, also known as Hozayfa Al-Khalout, is a well-known figure to Palestinians and Israelis alike, close to Hamas' top military leaders and in charge of delivering the group's messages, often via video, for around two decades.
On Saturday, Red Cross head Mirjana Spoljaric said an evacuation from the city would provoke a massive population displacement that no other area in the enclave is equipped to absorb, with shortages of food, shelter and medical supplies.
"People who have relatives in the south left to stay with them. Others, including myself, didn't find a space as Deir Al-Balah and Mawasi are overcrowded," said Ghada, a mother of five from the city's Sabra neighborhood.
Around half of the enclave's more than 2mn people are presently in Gaza City. Several thousand were estimated to have left the city for central and southern areas of the enclave.
Smoke rises from Gaza after an explosion on Monday. REUTERS
A Palestinian woman comforts a child at the Nasser hospital in Khan Yunis in the southern Gaza Strip on Monday. AFP