 Gunmen have killed three police men on duty in Onitsha, Anambra State. The incident happened around 9 a.m. on the Ukebu Eze Ikeka Road in Onitsha. Two other cops were injured during the shooting incident at a security post mounted by the police operatives. The operation vehicle of the cops was also set ablaze. A bystander said the gunmen may have been angered by the alleged extortion by the operatives at the security post. When contacted, the state police public relations officer Ikenga Tochiku confirmed the incident.