Police say bombs have killed a farming couple and a policeman in separate attacks in northern Iraq. A police officer says a man and his wife were killed while working in their orchard in the Diyala province town of Sadiya. Police believe the bomb wasn't targeting the couple but was left behind by insurgents who long controlled the area, Associated Press reported. Security officials also say suicide car bomb struck a patrol, killing a policeman and wounding two others in the northern city of Mosul.