Israel launched a wave of air strikes across Gaza, saying it was striking dozens of Hamas targets in its heaviest assault in the territory since a ceasefire took effect in January.
Palestinian officials reported at least 322 deaths.
Prime Minister Benjamin Netanyahu said he ordered the strikes because of a lack of progress in talks to extend the ceasefire. Officials said the operation was open-ended and was expected to expand. The White House said it had been consulted and voiced support for Israel's actions.
“Israel will, from now on, act against Hamas with increasing military strength,” Netanyahu’s office said.
The attack shattered a period of relative calm during the Muslim holy month of Ramadan and raised the prospect of a full return to fighting in a 17-month war that has killed tens of thousands of Palestinians and caused widespread destruction across Gaza. It also raised questions about the fate of the roughly two dozen Israeli hostages held by Hamas who are believed to still be alive.
Hamas accused Netanyahu of upending the ceasefire agreement and exposing the hostages ”to an unknown fate.” In a statement, it called on mediators to hold Israel “fully responsible for violating and overturning the agreement.”
The strikes came as Netanayahu comes under mounting domestic pressure, with mass protests planned over his handling of the hostage crisis and his decision to fire the head of Israel's internal security agency.
Wounded stream into Gaza hospitals
In the southern city of Khan Younis, AP reporters saw explosions and plumes of smoke.
Ambulances brought wounded people to Nasser Hospital, where patients lay on the floor, some screaming. A young boy sat with a bandage around his head as a health worker checked for more injuries, a young girl cried as her bloody arm was bandaged.
A strike on a home in the southern city of Rafah killed 17 members of one family, including at least 12 women and children, according to the European Hospital, which received the bodies.
The dead included five children, their parents, and another father and his three children, according to hospital records.
Many Palestinians said they had expected a return to war when talks over the second phase of the ceasefire did not begin as scheduled in early February. Israel instead embraced an alternative proposal and cut off all shipments of food, fuel and other aid to the territory's 2 million Palestinians to try to pressure Hamas to accept it.
“Nobody wants to fight,” Palestinian resident Nidal Alzaanin told the AP by phone from Gaza City. "Everyone is still suffering from the previous months,” he said.
Explosions could be heard throughout Gaza. Khalil Degran, a spokesman for the Health Ministry based at the Al-Aqsa Martyrs Hospital in central Gaza, said at least 200 people had been killed. The territory’s civil defense agency said its crews were having a difficult time carrying out rescue efforts because various areas were being targeted simultaneously.
US backs Israel and blames Hamas
The White House sought to blame Hamas for the renewed fighting. National Security Council spokesman Brian Hughes said the Hamas "could have released hostages to extend the ceasefire but instead chose refusal and war.”
US envoy Steve Witkoff, who has been leading mediation efforts along with Egypt and Qatar, had earlier warned that Hamas must release living hostages immediately “or pay a severe price."
An Israeli official, speaking on condition of anonymity to discuss the unfolding operation, said Israel was striking Hamas' military, leaders and infrastructure and planned to expand the operation beyond air attacks.
The official accused Hamas of attempting to rebuild and plan new attacks. Hamas fighters and security forces quickly returned to the streets in recent weeks after the ceasefire went into effect.
Israel's defence minister, Israel Katz, said the “gates of hell will open in Gaza” if the hostages aren't released.
“We will not stop fighting until all of our hostages are home and we have achieved all of the war goals,” he said.
