In Jharkhand, two CRPF personnel were today killed and five others injured in an exchange of fire during combing operation against the Maoist guerrillas at Bakop village in Jharkhand's Khunti district. Director General of Police G S Rath said, two persons died on way to hospital in Ranchi. They suffered injuries in exchange of firing during intelligence-based operation against the Maoists.Earlier, Khunti Superintendent of Police M Tamilvanan said seven CRPF personnel were injured during a fierce gun battle with the Maoists and were admitted to the hospital with the condition of four of them being serious.