NEW : Hezbollah secretary-general expresses `` grave concern '' about airstrike . `` I can not predict this , and this depends on the relevant authorities to decide on appropriate retaliation and decide the manner and place , '' Moqawama quoted him as saying . Russia , Russia and United Nations condemn the attack . Russian reports that strike hit research center are wrong , Russia official says . Sources say the airstrike hit a convoy hauling missile parts .
NEW : Hezbollah secretary-general expresses `` grave concern '' about airstrike . Russia , Russia and United Nations condemn the attack . Russian reports that strike hit research center are wrong , Russia official says . Sources say the airstrike hit a convoy hauling missile parts .