QUETTA - As many as four persons including two personnel of Frontier Constabulary were killed and five others got injured in different incidents in Dera Bugti and Quetta on Tuesday. The Baloch Liberation Army claimed the responsibility for the incident. According to details, a camel carrying two persons in Patokh area of Dera Bugti stepped on an anti-personnel mine which exploded killing the camel on the spot while both the tribesmen received serious injuries. Later on one of them who was identified as Barkat succumbed to injuries whereas the condition of the other injured, Abdul Nabi, was stated to be out of danger. In another similar incident in the same area a person, who was identified as Hassoo Bugti, was killed when riding a motorcycle along with his two cousins he rolled on a landmine which blew them up. His pillion riders received injuries in the blast. In an armed attack, two personnel of Frontier Constabulary were killed in Quetta. The members of security forces were attacked by unidentified gunmen riding a motorcycle when they were purchasing edible items from a shop at Brewery Road. They were identified as Sibghatullah and Saif-ur-Rehman. Their bodies were sent to their native village in NWFP for burial. In another incident one lady and a child were injured in a grenade attack on a house owned by Nadeem Butt adjacent to Marhaba Floor Mill on main Sariab Road in Quetta.  The attackers escaped from the scene after lobbing a hand grenade on the house that resulted in injuries to Zawar Butt, the 10 year old son of the owner of the house and Samia, a guest. Both were shifted to hospital. In the meanwhile Beeberg Baloch, the spokesman of Baloch Liberation Army claimed the responsibility for attack.