A jawan of the Special Task Force was killed and two others injured when Maoists fired at them from a mountain top in Jamui district in the wee hours of Friday.
Superintendent of Police Jitender Rana told PTI that armed Maoists blew up an under-construction building of the Central Reserve Police Force by exploding can bombs in Parasi village of the district on Thursday night.
A district police team led by the superintendent of police, STF and Bihar Military Police patrol parties rushed to the incident site.
While the district police team left their vehicles at Bari Bag village and crossed Kiul River through village Panbharva on foot, the STF and BMP chose to go by the main road through the jungle, when they were fired upon by Maoists from Gidheshwar mountain top.
Three STF jawans received bullet injuries. One of them later succumbed to his injuries.
The SP said the dead STF jawan has been identified as Anshu Kumar.
The two injured jawans are Ajay Kumar and Suman Kumar, he said, adding they were first taken to Sadar hospital at Jamui and later sent to Patna for treatment in the Patna Medical College and Hospital.
Teams of Bihar police, CRPF, STF and BMP are conducting combing operations in Gidheshwar jungle, Rana said.
Jamui, over 100 km from Patna, has been a hotbed of Maoist attacks. In 2005, five police personnel including an inspector was killed in an attack by the ultras.
In 1998, a CRPF jawan lost his life in an attack by the Maoists.
A few months ago, the rebels had attacked a camp office of a road construction company for levy and had taken some labourers hostage. They were released later.
