The deaths were reported from Danwar village under Kachhwa police station late last night.
Six others, who fell sick, are undergoing treatment at various private hospitals, Superintendent of Police, Rohtas, Manavjit Singh Dhillon said.
He said angry villagers were staging a demonstration at Danwar and demanding action against those responsible for facilitating illicit liquor trade in the area. "The matter is being investigated. Only after the post-mortem reports are out, can we say with certainty that the deaths have been caused by consumption of illicit liquor," he added.
Acting on a poll promise made during the Assembly elections of 2015, the Nitish Kumar government had imposed prohibition in Bihar in April last year.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)