The boat sank in Saryu river after parts of a crane fell on it in which a few labourers were engaged in construction of a bridge yesterday.
The incident took place near pillar no-46 when parts of the crane accidentally fell on the boat, which was carrying labourers for construction of the Chapra-Ara road bridge over the river, Superintendent of Police, Saran, Satbir Singh said.
He said five bodies have been fished out and search was on for about six others.