Police in Yemen shoot at protesters
At least four people have been killed and 10 others wounded as Yemeni police opened fire on Shiite protesters marching towards the prime minister's office in the capital, Sanaa, officials said.
The shooting erupted during a rally by supporters of Shiite Hawthi rebels who have been fighting against Sunni tribesmen in the country's north.
As the demonstrators marched to the government headquarters, the police first fired tear gas to try to disperse the crowds, then started shooting.
Medical officials said four people died. Witnesses at the scene said at least 10 were wounded by gunshots while several others were injured in a stampede that erupted after the shooting, as the protesters tried to get away from the scene.
Tensions have been escalating in the Yemeni capital where the Hawthis have staged anti-government demonstrations for weeks, often clashing with the police forces and demanding that the government resign and reinstate fuel subsidies.
Negotiations have failed to end the stand-off and the Hawthis have kept up their rallies, camping out in the heart of Sanaa. On Sunday, one person died in the clashes with police as the Hawthi protesters marched near Sanaa's airport road.
The Hawthis had waged a six-year insurgency in the north against former Yemeni president Ali Abdullah Saleh, which officially ended in 2010.
After Saleh's ousting, they have fought ultra-conservative Sunni Islamists in several northern cities and towns, accusing them of turning their strongholds into incubators of extremism.
The Hawthi protest threatens to further destabilise volatile Yemen, the Arab world's most impoverished country where authorities continue to battle militants led by the country's al Qaida branch, considered by the US to be the world's most dangerous offshoot of the terror group.
President Abed Rabbo Mansour Hadi last week dismissed his cabinet and promised to appoint a new premier within a week in a move to offer concessions, but the Hawthis only escalated their protests.
The violence in Sanaa prompted neighbouring Saudi Arabia - a Sunni kingdom long at odds with the Hawthis - to evacuate its embassy over the past two days and suspend flights to Yemen. Earlier this year, the kingdom listed the Hawthis as a terrorist group.
In 2009, while backing the former Yemeni government, Saudi Arabia unleashed a heavy offensive against the Hawthis after an incident in which the Shiite rebels crossed into the kingdom and killed a Saudi soldier.