Israel made 'very bad gamble' on Natanz: Iran FM

Speaking during a joint news conference with his Russian counterpart, Iran's top diplomat said the incident enabled Iran to use all of its options at Natanz legally and legitimately.

"Israel played a very bad gamble if it thought that the attack will weaken Iran's hand in the nuclear talks," Zarif said.

Tehran has said an explosion on Sunday (April 11) at its key nuclear site was an act of sabotage by arch-foe Israel and vowed revenge for an attack that appeared to be latest episode in a long-running covert war.

Israel, which the Islamic Republic does not recognize, has not formally commented on the incident.