QUETTA - Five policemen including a deputy superintendent of police (DSP) were killed and four others wounded in bomb blasts in Panjgur, Quetta and Chaman on Tuesday.According to Atiqur Rehman, a police official, a mobile was on routine patrolling in the Panjgour town, bordering Iran, when explosives planted along the road near Wapda grid station exploded, leaving five policemen including a DSP dead.“Explosives were detonated by a remote control device when the patrolling party was moving from there, blowing off the vehicle” said Atiqur Rehman.Police and other law enforcement agencies shifted the dead bodies to hospital where they were identified as CID DSP Naseem Baloch, constables Tahir, Noor Ahmed, Mohsin Ali and driver Abdul Wahid.Separately, a policeman was injured in a blast at the Eastern Bypass of Quetta.Police said that a mobile was parked near the cattle market when the blast took place that injured the constable.“The bomb was planted near the mobile,” a police official said. The injured constable, Muhammad Naheem, was shifted to the Civil Hospital.  The Bomb Disposal Squad said the bombing was carried out by a remote controlled device. “Investigation into bomb blasts of Panjgour and Quetta were underway,” a senior police official said, adding that armed groups active in the province could be behind the blasts. Police have registered cases of both incidents against the unknown men and investigations are underway.In Chaman, three policemen were injured in an explosion near the Saddar Police Station. The bomb was planted beside the wall of the police station.The injured were taken to hospital for medical aid.According to AFP, six policemen were killed when their vehicle ran over a landmine in Panjgur. “A senior police official of intelligence branch and five of his subordinates were on a mission in Panjgur district when their vehicle collided with a landmine. All of them were killed,” Balach Aziz, a senior administration official, told AFP.