Chile has seen its first two-day national strike since the Augusto Pinochet dictatorship. This follows clashes with police in recent weeks as hundreds of thousands of people took to the streets to demonstrate against conservative President Sebastian Pinera. On the first day of the strike, protesters barricaded roads and burned tyres in parts of the capital in Santiago. The strike was called by Chile's main umbrella trade union CUT. Other national strikes since Pinochet's time 20 years ago have been called just for one day.