Raipur Mar 26 PTI A 55-year-old tribal woman was critically injured after a pressure improvised explosive device IED planted by Naxals went off in Bijapur district of Chhattisgarh on Saturday police said The blast occurred in the afternoon when the victim Kartam Jogakka a native of Metlacheru village under Bhadrakali police station limits was grazing her cattle in a nearby forest an official here said While passing through a dirt track in the forest the woman set foot on a pressure IED which exploded She sustained serious injuries on her right leg he said After being alerted by locals a team of security personnel rushed to the spot and the injured woman was shifted to a community health centre in Bhopalpatnam town the official said The Maoists often plant IEDs on dirt tracks to target security personnel who use these routes during anti-Naxal operations in forests Civilians have fallen prey to such traps laid by ultras in the past in Bastar region police said PTI COR TKP ARU ARU