Chilean police throw boy, 16, off bridge during protests

Apparent serious assault is latest in series of alleged human rights abuses by Carabineros

Less than a month before Chile votes on whether to replace its Pinochet-era constitution, police have brutally repressed demonstrators in the capital, Santiago.

On Friday evening officers of the Carabineros police force used plumes of teargas and high-pressure water jets to disperse protesters congregating in Plaza Italia, where pockets of violence flared amid a heavy police presence.