Yemen's Houthi rebels continued to attack on Saturday the southern city of Aden, one of the main strongholds of the country's embattled president. br br The violence came amid a military campaign carried out in Yemen by a Saudi-led coalition to push back the Houthi rebels, who have overrun much of the country - 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.