Earlier, the IDF had said it killed three terrorists during an operation, north of the Gaza Strip and was investigating the possibility that one of them was Yahya Sinwar.
During his imprisonment, Sinwar led the Supreme Leadership Committee of Hamas prisoners in Israeli jails, helping to manage confrontations with prison authorities during a series of hunger strikes.
The announcement followed the assassination of its politburo chief, Haniyeh, who was killed in his Tehran residence just hours after attending President Masoud Pezeshkian’s inauguration. Iran has accused Israel of the assassination and has pledged a strong retaliation.