QUETTA - Unidentified armed men opened fire on the convoy of Inspector General Police Balochistan in Bolan district, some 60km south of Quetta on Saturday. According to sources, IG police Malik Muhammad Iqbal, Chief Secretary Balochistan Ahmed Bakhsh Lehri and Secretary Home Akbar Hussain Durrani were travelling on national highway near Abe-e-Gum area when unidentified people opened fire on their vehicles. However, nobody was hurt in the attack, they said, adding, that a rocket was also fired from nearby mountains. Talking to this scribe Secretary Home Akbar Hussain Durrani said that they heard firing ,however, they were safe and sound. He rejected that any rocket was fired on IGs convoy. Meanwhile, a vehicle of the Frontier Constabulary (FC) was damaged by a remote-controlled blast in the outskirts of Quetta on Saturday, police said. In another incident, unidentified miscreants blew up two power pylon of 132KV in the Kachhi area. An explosive device was planted along the Quetta-Mastung Highway in Mian Ghoundi area. It exploded when the vehicle of security forces was passing by. No loss of life was reported. Security personnel cordoned off the area after the blast. Police have registered a case and started investigations. Baloch Liberation Army (BLA) spokesman Azad Baloch claimed responsibility for the attack, saying five security personnel were killed in the remote-controlled blast. However, the FC denied fatalities. Separately, unidentified militants blew up two power pylons in Kachhi districts of Balochistan, suspending power supply to different areas of the province. According to official sources, unknown saboteurs fitted explosives with tower no. 268 and 269 of the 132 main transmission line in the Aab-e-Gum area, 60 kilometres south of Quetta. Sources in the Quetta Electric Supply Company said that the damage to towers caused a power shortage of 120 Megawatts while the province is already facing a shortfall of 500MWs. They said repairs would start after security clearance. No group has claimed responsibility for the pylon attack. On Friday, two workers of the Uch gasfield were killed and three security personnel injured when armed men opened fire on their vehicle in Jaffarabad district, 360 kilometres east of Quetta.