About 2,000 demonstrators have clashed with police in the Yemeni capital Sanaa on the third day of anti-government protests.
Violence broke out as demonstrators marched through the city, demanding political reform and the resignation of President Ali Abdullah Saleh.
Mr Saleh, in power since 1978, has already pledged to step down in 2013, but has previously promised to quit.
Yemen's protests have gathered momentum with the success of Egypt's revolution.
"A Yemeni revolution after the Egyptian revolution," chanted demonstrators as they tried to march to the presidential palace in Sanaa on Sunday.
Witnesses said several people were hurt as police armed with batons clashed with stone-throwing protesters. At least 10 people were arrested, said reports. BBC News
