Police in Chile say they arrested more than 260 people, during protests marking the anniversary of the 1973 military coup. Officials said 42 police officers were injured in clashes with demonstrators, on Wednesday night. Among those injured was a police general who was struck in the head with a petrol bomb. President Sebastian Pinera called on judges to punish those behind the clashes "with severity" stating also that the violence seen last night has absolutely no justification. Mr. Pinera said that organised groups were behind the violent acts, and they were joined by common criminals and the president called on the population to back him in his rejection of such incidents.