Sanaa/Tehran (Agencies): At least six people were killed in clashes between government supporters and pro-democracy protesters who are demanding the expulsion of Yemen's President Ali Abdullah Saleh, a media report said.

Four people died during protests in the southern port city of Aden on Saturday, and a student was killed in the city of Taiz, Iran's Press TV reported on Sunday.

Another student demonstrator was killed near the Sanaa University area in the capital on Saturday. The 16-year-old was shot dead when government supporters armed with guns, batons and rocks were trying to break into the campus.

Yemeni security forces reportedly did not intercede.

Saturday was the ninth consecutive day that protesters had called for the ouster of Saleh.

Yemenis, angered by corruption and unemployment in the country and inspired by the revolts in Egypt and Tunisia, are demanding that Saleh step down after 32 years of autocratic rule.

Last week, Saleh stated that he would not run in the 2013 presidential election.

On Friday, at least three pro-democracy protesters were killed and several others injured during clashes with security forces in Aden's Khor Maqsar district, witnesses said.

A hand grenade was hurled into a crowd of demonstrators in the city of Taiz, killing two people and leaving about 25 wounded, the report said.

Friday's violence came a day after Yemeni riot police opened fire to disperse thousands of anti-government protesters in Aden. Four were killed in the incident.

In Sanaa, 40 people were hurt after Saleh loyalists armed with guns attacked a crowd of protesters on Thursday.