Damascus warned on Sunday it would take "tough measures" against any state which formally recognized the council.
Damascus appears concerned that if the Syrian National Council is recognized by the international community.
Another leading opposition figure was beaten up by pro-government gunmen and rushed to a hospital in Damascus.
People rallied across the Arab nation with renewed vigour demanding political freedoms.
Many of the protestors sang patriotic numbers to show their solidarity outside the jail complex.
Latakia is the latest Syrian city to be stormed after Hama.
Hama residents feared higher casualty figures than the estimated killed since the military assault began on Sunday.
The top US military officer said Washington wants to pressure the Syrian regime.
West is pushing for a resolution condemning President Bashar Al Assad for a brutal crackdown on protesters.
Friday marked a clear attempt by the opposition to present a united front against the Assad family dynasty.
The uprising has battered Yemen's economy and destabilized the Arab world's poorest nation.
Alongside the military crackdown, Assad has promised a national dialogue on political reforms.
Tens of thousands of Syrians staged protests on Friday that stretched across most of the country.
European powers initiated a detente with President Bashar al-Assad before the unrest.
Yemeni President Ali Abdullah Saleh was forced to seek medical treatment in Saudi Arabia.
The protests broke out in defiance of a military crackdown
Syria has barred most international media from operating in the country.
Angry protesters rallied on in Syria, in what many are calling a day of rage.
The UN will send a team to probe the alleged human rights violations in the country.