Jamui, July 05 (ANI): Maoists gunned down a security officer in Bihar during a gun battle. A senior official of the Central Reserve Police Force (CRPF) was shot dead when extremists ambushed the security forces in Jamui district of the state. Superintendent of Police (SP), Ravindra Nath Tiwari said the deceased was identified as Harikant Jha, a senior officer with the 7th battalion. Police have launched combing operation to nab the ultras. The rebel group, which claims to be fighting for the rights of the poor and landless, controls some of India_s mineral-rich areas and operate in large swathes of the eastern, central and southern countryside.