Jagdalpur (Chhattisgarh), Apr 18 : Four personnel have been injured – two of them grievously – during a Maoist assault in which an under-barrel grenade launcher was also fired at a police camp at Darbha, which is a rebel den within Kutru Police Station limits of restive Bijapur district in Left-wing extremism-affected Bastar division. “The severely-injured duo has been flown to Raipur by helicopter while the rest are undergoing treatment at the District Hospital. The foursome are head constables Aashrit Vatti, Jitendra Mandavi, Tukeshwar Dhruv and Om Prakash Diwan. The attack commenced at 2300 hrs on Sunday. The personnel immediately took up positions and retaliated resulting in the ultras fleeing,” IG (Bastar Range) Sundarraj Pattilingam confirmed on Monday. XC-AC