A Jharkhand Jaguar jawan was killed in action and a CRPF jawan was injured in a blast triggered by Maoists in a hilly area in Jharkhand, according to a report by NDTV. The incident took place when an improvised explosive device (IED) planted by Maoists exploded during an anti-Naxal operation in West Singhbhum, NDTV reported, citing police.