Two persons including a suicide bomber and a policeman were killed and five other police cops wounded in two incidents in Pakistan on Thursday, police said. The incidents took place in police offices in Pakistan's Punjab province. A police guard deployed at the police training centre in Sargodha shot dead a person suspected to be a suicide bomber. Police later recovered a suicide jacket, containing ten kilograms of explosives, from him. The bomber tried to sneak into the centre. The guard stopped him at the gate but he opened fire. Both were killed. At the time, police recruits were engaged in exercises early morning, police said. In Gujranwala police traffic office, a bomb went off injuring five policemen. Police said that the bomb was placed in a car that had been seized some time back during a drive against encroachments of public places.