QUETTA - At least four employees of Oil and Gas Development Corporation Limited were killed and three others sustained injuries in a roadside bomb blast in Jaffarabad, some 450km southeast of Quetta, on Thursday. The Baloch Republican Army has claimed responsibility for the attack. Officials said the blast hit a convoy of OGDCL employees being escorted by Frontier Corps when a bomb fixed to a motorbike parked on Jamali Bypass area of Dera Allahyar went off. Consequently, two of the workers died on the spot while five others received injuries. However, two of them succumbed to their wounds later in the hospital. The deceased were identified as Amjad Ali, Shafiqur Rehman, Muhammad Nawaz and Khuda Bakhsh Lashari. Talking to this scribe, Tariq Sabir, the acting district police officer, said: It was a remote-controlled bomb blast and the target was OGDCL employees and security forces. He said an OGDCL car and some other vehicles including a container parked nearby were destroyed in the blast. The police officer said the gas company employees working in Uch gas field normally go on vacations for visiting their families living in other provinces under strict security. He said some five vehicles carrying OGDCL employees along with 15 vehicles of Frontier Corps were heading towards Jacobabad for onward journey when they met an accident. Sources said condition of some injured was serious and they were shifted to a Jacobabad hospital. The blast was so powerful that it rocked the entire area and caused panic among the residents. Meanwhile, Sarbaz Baloch, the spokesman for the banned Baloch Republican Army, claimed responsibility and said six OGDCL employees were killed in the attack.