At least 19 people were injured when the bus in which they were travelling hit a stationary oil tanker at Deevan Cheru, 5 kms away from the city on Tuesday, police said.
The mishap occurred this morning when the state roadways bus, which was coming from Visakhapatnam to Rajahmundry, hit the oil tanker from behind, they said.
The injured were rushed to the nearby government hospital for treatment, police said, adding that the condition of the driver of the bus was stated to be serious.
A case has been registered in this connection while the further probes are on, they added.
Recently, a private bus fell off a bridge in Maharashtra, claiming more than 25 lives while three bus met the same fate in Andhra Pradesh on Monday in which one person died and more than 20 people injured.