Chile´s Pinera acknowledges security force abuses during protests, says 'no impunity'

SANTIAGO (Reuters) - Chilean President Sebastian Pinera on Sunday vowed "no impunity" for security forces that used excessive force and violated the rights of protesters during weeks of violent riots over economic policies and social injustice that have left more than 20 dead.

Public prosecutors in Chile are investigating more than 1,000 cases of alleged abuses - ranging from torture to sexual violence - by the police and military.