A ceasefire has come into effect in Yemen, fuelling hopes of an end to the country's six-year-old war.<br /><br />In recent months there has been an escalation in violence between government forces and Houthi rebels in the north. <br /><br />But now, both sides say they have agreed to a truce. <br /><br />Al Jazeera's Hashem Ahelbarra reports from Sanaa. (12 Feb 2010)
