Meir Dagan, a former head of the Israeli spy agency Mossad, died on Thursday morning at the age of 71, the government said.
Dagan was the 10th serving director of the Mossad, between 2002 and 2011, who had suffered from health issues in recent years and undergone a liver transplant in 2012.
Mossad described Dagan as a distinguished member of the Israeli establishment community revered by many both at home and abroad.
Dagan became a staunch critic of Israeli Prime Minister Benjamin Netanyahu, specifically over the issue of Iran.
According to international media reports, during Dagan's tenure as Mossad chief, the spy agency carried out assassinations abroad of top Hamas and Hezbollah operatives.