CAIRO
An Israeli air strike has killed the son of Hamas’ chief negotiator in U.S.-mediated talks over Gaza’s future, a senior Hamas official said on Thursday, as leaders of the militant group held talks in Cairo aimed at safeguarding their truce with Israel. Azzam Al-Hayya, son of Khalil Al-Hayya, succumbed to his injuries on Thursday after being struck in an Israeli attack on Wednesday night, said senior Hamas official Basim Naim. He is the fourth son of Hamas’ exiled Gaza chief to have been killed in Israeli attacks. Hayya, who has seven children, has survived multiple Israeli attempts to kill him. An Israeli strike in Doha last year targeting Hamas leadership killed his son, though Hayya survived. Two other sons were killed in past Israeli attempts on his life, in Gaza strikes in 2008 and 2014.