Anti-government protesters in Saudi Arabia's Eastern Province have taken to the streets to voice their anger about Riyadh’s hostile policies towards the oil-rich region.
Activists say hundreds of demonstrators took part in a protest march dubbed "the Friday of Insistence" in the town of Qatif to mark the first anniversary of their uprising.
They also chanted slogans against provincial ruler Muhammad bin Fahd and condemned the Bahraini government’s crackdown on protests.
Saudis have held peaceful demonstrations since February last year on an almost regular basis in the eastern region, demanding reforms, freedom of expression and the release of political prisoners.
Protesters also want an end to economic and religious discrimination against the oil-rich region. Several demonstrators have been killed and dozens of activists have been arrested since the beginning of protests in the region.
Riyadh has intensified its crackdown on protesters since the beginning of 2012.