Patients are rushed to a field hospital in the Yemeni capital of Sana'a.<br/> Dozens of people were brought here after security forces opened fire on protesters demanding the ouster of long-time President Ali Abdullah Saleh.<br/> Witnesses and medics say at least seven people died in the violence, and dozens were injured.<br/> It was the most recent in a string of deadly confrontations in Sana'a.<br/> The crackdown came as Saleh faces increasing pressure to step down after 33-years in power.<br/> Thousands took to the streets in the capital over the weekend.<br/> In a separate incident, government forces fought a pitched battle against gunman loyal to a power tribal leader - Sadeq al-Ahmar - who also wants Saleh gone.<br/> Andrew Raven, Reuters
