The official IRNA news agency quotes Mohammad Javad Zarif today as saying these are "baseless accusations."
Zarif's response came after US Secretary of State John Kerry said during a visit to Saudi Arabia yesterday that Washington was "deeply troubled" after Saudi Crown Prince Mohammed bin Nayef showed him photos allegedly of Iranian- supplied missiles along the Saudi-Yemen border. Those photos have not been made public.
Zarif, speaking from Chile, said Kerry's remarks show the US government is "an accomplice in Saudi war crimes against the innocent people of Yemen."