The Supreme Leader of Iran's Revolutionary Guard released a chilling statement Friday afternoon, hours after Israel bombed Tehran and supposedly killed the former head of the organization

Iran's Supreme Leader Ayatollah Ali Khamenei said in a statement on Friday that Israel initiated a war and said it will not be allowed to do "hit and run" attacks without grave consequences.

Israel has already claimed responsibility for the deaths of nine scientists instrumental in Iran's nuclear program, as well as senior Iranian generals.