BAGHDAD (AP) — Two protesters were killed and over a dozen wounded in central Baghdad on Friday in renewed violence between anti-government demonstrators and Iraqi security forces, activists and officials said. The deaths follow weeks of calm.

Riot police fired tear gas and hurled sound bombs to disperse crowds on the strategic Sinak Bridge after protesters attempted to breach cement barriers previously erected by security forces, causing the casualties, activists and medical and security officials said.

Two protesters were killed and at least 20 wounded, three activists and a security official said. The officials spoke on condition of anonymity in line with regulations.