RT- Iran�s military presence in Syria is legitimate and based on the invitation of Damascus, a senior Iranian official said on Wednesday, calling on US forces to leave the country.

Ali Akbar Velayati, a top aide to Iran�s supreme leader, was reacting to US Secretary of State Rex Tillerson who said on Wednesday that Iran needed to withdraw its military from Syria, Reuters said. �Iran�s military presence in Syria was based on the invitation of the Syrian government,� according to Velayati. �Those should leave Syria who are there without the permission of the Syrian legal government,� Velayati was quoted as saying by ISNA.