QUETTA - At least two security personnel were reportedly killed and two others sustained injuries in an armed attack at a checkpost in Naseerabad district while a vehicle of security forces escaped unhurt in a bomb attack in Khuzdar town. As per reports reaching here, unknown armed persons opened indiscriminate firing on a checkpost of security forces in Naseerabad area with heavy weapons, which resulted in death of two security personnel. Two others also injured in the incident. On retaliation of security forces the attackers escaped from the site. The deceased were identified as Muhammad Fazal and Imran. The injured were rushed to the hospital. Soon after the attack security forces cordoned off the area and started search operation, however, no arrest was reported. Spokesman of defunct Baloch Liberation Army (BLA) Beebarg Baloch has claimed the responsibility of the attack. In another incident, vehicle of security forces escaped unhurt when unknown armed persons attacked it with a bomb in Khuzdar district. Sources said that a vehicle carrying security forces was on patrolling duty in Khuzdar town. It was passing from New Bus Stand when an explosive device planted along with a bridge went off with a big bang, resulting partial damage to the bridge. However, vehicle of security forces remained safe. Sources said that the bomb was detonated by a remote control and the apparent target was vehicle of security forces. Police have registered a case against unknown miscreant and started investigation. Lashkar-e-Balochistan has claimed the responsibility of attack on vehicle of security forces. Meanwhile, unknown armed people riding a motorbike lobbed a hand grenade on the house owned by Muhammad Iqbal at Wahdat colony. The hand grenade landed inside the house and exploded with huge explosion smashing windowpanes of the house. However, no loss of life was reported in the blast.