Anti-riot policemen fired warning shots Thursday evening to break up a massive march of several thousands of anti-government protesters in Aden, killing one protester and injuring about 10.

This brought the death toll of protests in the country since Wednesday to three, after police's random gunfire killed Yaseen Askar, 19, and Mohammed Ali al-Alwani, a 17-year-old protester, during fierce clashes in Al-Mansoura district in Aden on Wednesday, according to medical sources.

In Sanaa, about 40 protesters were injured Thursday during clashes with pro-government backers wielding daggers and batons, said officials in the opposition coalition.

The clashes took place when more than 3,000 anti-government protesters, mostly students, gathered inside Sanaa University and marched to the south gate of the campus, where they clashed with pro-regime supporters.

Anti-riot policemen rushed to the scene in Al-Rubat street, trying to stop the clashes, and one policeman was seriously wounded, a police officer said on condition of anonymity.