Monday in an early morning a bus hit the side wall of a bridge in which four persons, including two women, were killed and five injured, police said. As per police report, the driver of the bus heading towards Coimbatore from Kulachel in Kanyakumari district, lost control of the vehicle around 4 AM, resulting in the mishap. they said, Driver Biju and three passengers died on the spot. The five injured passengers were rushed to the Palayamkottai Government hospital where they immediately admitted.