Israel warns "Tehran will burn" if Iran continues firing missiles, while state media say 60 people have been killed in a strike on Iran's capital.

"This confrontation will not end with last night's limited actions and Iran's strikes will continue, and this action will be very painful and regrettable for the aggressors," Fars reported, citing senior military officials.

Iran launched a counterattack on Israel the same day Israel hit Iranian nuclear sites and military bases with airstrikes on June 13.