At least three passengers were electrocuted and 12 suffered critical burns on Friday when their bus came in contact with a high-tension electric wire.
Police said the incident occurred in the afternoon when the bus was headed towards Jaithari from Umariya area.
As the high tension wire came in contact with the luggage kept on the bus roof, the current spread through the bus killing three people on the spot, the police added.
The badly injured people were admitted in the district hospital.