<p>Fighting between dissident troops and those loyal to embattled President Ali Abdullah Saleh resumed at dawn after a brief lull overnight and raged through the day before receding in the evening, medics and witnesses said.<br /><br />The defence ministry said early evening that Vice President Abdrabuh Mansur Hadi had given "strict orders for a rapid ceasefire in the capital and that government forces were obeying."<br /><br />An opposition official said the dissident troops had been observing a ceasefire since noon to "foil the plans of the band that wants a military escalation."<br /><br />EU foreign policy chief Catherine Ashton had earlier urged an immediate end to the bloodshed and pressed Saleh to agree to a transfer of power in the face of the mass protests that have rocked his regime since mid-January.<br /><br />Republican Guard troops, commanded by Saleh's son, Ahmed, shelled posts held by troops of the First Armoured Brigade loyal to dissident General Ali Mohsen al-Ahmar around Change Square, epicentre of the protests, witnesses said.<br /><br />Change Square was targeted by mortar rounds and anti-aircraft fire, with one witness describing it as the "heaviest shelling" yet and saying it "lit the sky over the square."</p>
<p>Fighting between dissident troops and those loyal to embattled President Ali Abdullah Saleh resumed at dawn after a brief lull overnight and raged through the day before receding in the evening, medics and witnesses said.<br /><br />The defence ministry said early evening that Vice President Abdrabuh Mansur Hadi had given "strict orders for a rapid ceasefire in the capital and that government forces were obeying."<br /><br />An opposition official said the dissident troops had been observing a ceasefire since noon to "foil the plans of the band that wants a military escalation."<br /><br />EU foreign policy chief Catherine Ashton had earlier urged an immediate end to the bloodshed and pressed Saleh to agree to a transfer of power in the face of the mass protests that have rocked his regime since mid-January.<br /><br />Republican Guard troops, commanded by Saleh's son, Ahmed, shelled posts held by troops of the First Armoured Brigade loyal to dissident General Ali Mohsen al-Ahmar around Change Square, epicentre of the protests, witnesses said.<br /><br />Change Square was targeted by mortar rounds and anti-aircraft fire, with one witness describing it as the "heaviest shelling" yet and saying it "lit the sky over the square."</p>