A CRPF personnel attached with the elite anti-Naxal battalion COBRA was killed and four others injured in a gunbattle with Maoist ultras inside a forest in Naxal-hit Purulia district of West Bengal. According to Superintendent of Police Sunil Chowdhury, acting on a tip off about existence of a Maoist camp at Dekai forest, securitymen of the joint force launched an operation in the area when the ultras fired at them. He said, five security personnel were injured in the exchange of fire, of whom one died soon after. The injured were being taken to Kolkata in a helicopter. Police sources said, some Maoists were also injured in the gunbattle but no body was found. A search operation is on.