Two men were yesterday charged with murdering a 36-year-old man and seriously injuring his twin brother in Xanthi, northern Greece, following an argument. Police said that three men attacked the two brothers on Saturday night, using a dagger and a wooden club to kill one twin and injure the other. It was not clear what caused the confrontation or exactly where the incident took place. The 36-year-old who died had been stabbed in the heart. His brother is being treated in the hospital for injuries that are not life threatening. Police arrested two suspects soon afterward but were still looking for a third man last night. The suspects were not named but officers said that they are aged 50, 27 and 24. It was not clear which two had been arrested.