Israel will not press Washington to tighten sanctions on Iran while nuclear negotiations continue for the next six months, but will push for tough action if the talks' June deadline is not met, a senior intelligence official said on Thursday.Intelligence Ministry Director-General Yuval Wollman's remarks suggested cautious confidence Washington will stick to demands that Iran curb its atomic work, although any deal is unlikely to meet Israel's original call that Tehran's nuclear program be dismantled.Iran denies Western accusations it is seeking nuclear weapons and says it has a sovereign right to a civilian program. Talks between Iran and six world powers, including the United States, have been extended beyond two previous deadlines since February."Within the framework of the extended talks, we think what is right is a steady and strong sanctions regime," Wollman told Reuters in an interview. "We are not dealing with additional sanctions now. I know of no (Israeli) position calling for that, officially or unofficially."