Iran’s Revolutionary Guards have launched a mid-range ballistic missile attack on terrorist positions in the Syrian province of Deir-ez Zor in retaliation for terrorist attacks in Tehran, Tasnim news agency reports. READ MORE: br RT LIVE br Subscribe to RT! br Like us on Facebook Follow us on Twitter Follow us on Instagram Follow us on Google+ Listen to us on Soundcloud: br RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 1 billion YouTube views benchmark.