At least three Palestinians were killed in Gaza City during a raid that saw Israeli special forces detected by Hamas and then covered by heavy airstrikes, said Ismail Al-Thawabta, director of the Hamas-run Gaza government media office.
Two children and a woman were killed and several others wounded in the bombardment, medics said. Two vehicles were hit and reduced to twisted wreckage. Another child was killed by Israeli fire in central Gaza, medics added.
Israeli Defence Minister Israel Katz said a senior Hamas militant had been arrested, with an Israeli security official identifying the man as the head of Hamas's internal security service. Katz did not provide further details about the operation.
"This is our policy: we do not wait for threats, but rather pursue Hamas terrorists, thwart them, and destroy their terror infrastructure," Katz said, speaking from the Netiv HaAsara community near the northern Gaza border.
Some Israeli media reports suggested the raid may have been carried out by members of an Israeli-backed militia operating from Israeli-controlled areas inside Gaza. Witnesses said Israeli warplanes fired at least 12 missiles near the Katiba area in western Gaza City, an area crowded with displaced families.
A US-backed ceasefire that took effect in October 2025 halted the large-scale fighting that devastated the enclave, but it has not ended Israeli strikes. The military says such operations are intended to prevent attacks by Hamas and other Palestinian militant groups.
Hamas accuses Israel of repeatedly violating the ceasefire and undermining efforts to advance a plan by US President Donald Trump to end the war, which includes further Israeli troop withdrawals and disarmament of Hamas.
More than 1,300 Palestinians have been killed in Gaza since the ceasefire came into force last October, according to Gaza health officials. The Israeli military says four Israeli soldiers have been killed in militant attacks during the same period.