Israel says Hamas leader Yahya Sinwar has been killed in the Gaza Strip. There has been no official comment from Hamas but sources in the group said the indications suggested that Sinwar had been killed during an Israeli operation. His death represents a major boost to the Israeli military and Prime Minister Benjamin Netanyahu after a string of high-profile assassinations of prominent leaders of its enemies in recent months. Netanyahu said Sinwar's death offered the chance of peace in the Middle East but warned that the war in the Gaza Strip was not over and Israel would continue until its hostages were returned.