In Chile, police have arrested at least 750 people following a massive march for higher wages and better working conditions and against the government’s so-called free-trade economic policies. Police used tear gas, water cannons and dogs to stop the labor march. Scores of protesters were reported to be injured. Local television showed one prominent politician with blood pouring from a head wound after he was struck by a riot officer with a police truncheon. Police accused the protesters of looting and clashing with officers. Thursday’s march was the largest protest in Chile since President Michelle Bachelet took office.