Yemen's state-run TV station goes up in smoke in the capital Sanaa on Saturday...<br/> <br />...following a three-day mortar attack by Shi'ite rebels.<br/> <br />A TV employee told Reuters hundreds were trapped inside.<br/> <br />Yemeni TV broadcast a written message calling for national and international organizations to intervene to save its employees from shelling.<br/> <br />Weeks of protests and clashes intensified on Thursday, when the Shi'ite Houthi rebels clashed with the army on the outskirts of Sanaa.<br/> <br />Fighting then expanded between the Houthis and the mainly Sunni tribesman of the al-Ahmar clan, one of the most powerful in Yemen.
