"Iran has begun - while it is a moderate rise right now - but it has begun to raise, to break out of the uranium enrichment curbs that were imposed on it," Yuval Steinitz, a member of Prime Minister Benjamin Netanyahu's security cabinet, told Israel's Ynet TV.

"It means ... that it is brushing off the red lines that were agreed (and) that it has begun its march, a march that is not simple, toward nuclear weaponry."