Israel is checking if Hamas's second-highest military leader died in an air strike, local media reports, as talks stumble to secure a ceasefire in the Gaza war to coincide with the Muslim holy month of Ramadan.
If his death is confirmed, Marwan Issa would be the highest-ranking official from the Islamist militant movement taken out by Israel in the more than five-month war.
Israeli Army Radio said Israel had bombed Al-Nuseirat refugee camp in central Gaza on Saturday night, where it had intelligence about the location of Mr Issa, second-in-command of Hamas's military wing the Izz el-Deen al-Qassam Brigades.
Israeli newspaper Haaretz reported that Israel was checking if the fatalities included Mr Issa.
Neither the Israeli military nor Hamas officials immediately commented on the media reports.
On Sunday, in a statement rounding up operations from the previous 24 hours, Israel said its forces had killed militants in central Gaza but did not mention the camp.
Mr Issa is high on Israel's most-wanted list, together with military wing head Mohammed Deif and Hamas's Gaza leader Yahya Sinwar, who are believed to have masterminded the October 7 attack that triggered the conflict.
Fighters from Hamas, which controls Gaza, killed 1,200 people in a rampage into southern Israel and took 253 hostages, by Israeli tallies.
The ensuing war has so far killed more than 31,000 Palestinians and injured nearly 73,000
