At least 33 anti-government protesters have been shot dead by Yemeni forces in Sanaa, doctors have told the CA.
They said 145 were wounded when government forces opened fire on a group of protesters gathered near the university, following Friday prayers.Armed men in plain clothes took aim from positions on top of nearby buildings in Taghyeer Square.
A month of violence has shaken Yemen, with protesters demanding that President Ali Abdullah Saleh step down.
The CA understands he is to address the country shortly on television.
Reuters reports that tens of thousands of protesters were also gathered in cities across the country - from the southern port of Aden to Hodeida, in the west.
"Most of the wounds were to the head, neck and chest," one doctor told AFP about Friday's shooting.
Popular revolts
Yemen is one of a number of countries in the region that have seen unrest since the presidents of Egypt and Tunisia were ousted in popular revolts.
Thousands of people have turned out for regular demonstrations in cities including Sanaa, Aden, Taiz and elsewhere, calling for corruption and unemployment to be tackled and demanding the president step down.The protests have often been met by riot police or supporters of President Saleh armed with knives and batons.
On 9 March one person was killed and at least 80 were injured when forces opened fire on a similar protest by a group which has been camped out in front of the university since mid-February.
The president has been power for 32 years, facing a separatist movement in the south, a branch of al-Qaeda, and a periodic conflict with Shia tribes in the north.
He has said he will not seek another term in office in 2013 but has vowed to defend his regime "with every drop of blood".
