Saudis have staged a fresh anti-regime protest in the central city of Buraidah to demand the release of political prisoners.
They also urged the release of women and children recently arrested in the city for taking part in a protest gathering in support of political prisoners.
On Friday, Saudi security forces arrested over 300 protesters, including 15 women, after hundreds of Saudis gathered outside the investigation and prosecution bureau in Buraidah to demand the release of political prisoners.
Protests against the ruling Al Saud dynasty have recently spread from the Eastern Province to other parts of the kingdom, with people of Buraidah threatening to stage a revolution against the regime.
Saudi activists say there are more than 30,000 political prisoners, mostly prisoners of conscience, in jails across the Kingdom.
According to the activists, most of the detained political thinkers are being held by the government without trial or legitimate charges and that they were arrested for merely looking suspicious.
Some of the detainees are reported to be held without trial for more than 16 years. Attempting to incite the public against the government and the allegiance to foreign entities are usually the ready-made charges against dissidents.
In Saudi Arabia, protests and political gatherings of any kind are prohibited.