Violent clashes erupted between Security forces and demonstrators along a central highway west of Bahrain's capital, Manama, on Friday, in a protest depicted as the biggest since month.
The Bahraini Interior Ministry acknowledged that security forces had moved to clear the area after the funeral of a teen that was killed by police officers the day before.
The protest appeared, from video posted online by Shiite activists, to be much larger than the small demonstrations that have occurred regularly since March, and it was the second time in two months that police killed a teen.
In late August, a 14-year-old-boy was killed as security forces in Sitra, a restive village to the south of the capital Manama, dispersed a small protest. Witnesses said he had been hit in the chest by a tear gas bombs.
The authorities identified the teen was killed on Thursday is Ahmed Jaber, 16- year old.
Rights activists said he was a part of a protest near the capital on Thursday when he was shot in the chest at close range by police officers with birdshot - used to contain crowds - and killed. The Bahrain Center for Human Rights posted a graphic image on its Web page that was said to show Ahmed just after his death, his chest riddled with small, round wound.
A report by forensic experts of the Public Prosecution indicated that the death resulted by an injury by a police birdshot.
The mourners accompanying the body on Friday, members of the country's Shiite majority, pumped their fists and chanted slogans against the government, according to video images posted online. Many carried the red and white flags of Bahrain, an important American ally and host to the United States Fifth Fleet's naval base.
After the funeral had broken up, activists said the police began using tear gas and sound grenades to disperse the crowd, as protesters lingered on the central highway.