Four people were killed and at least 24 others injured when a speedy truck crashed into a commuter bus parked along a busy highway in the northern Indian state of Uttar Pradesh on Saturday.

The accident occurred near Mahungupur village in Uttar Pradesh's Barabanki district, some 30 kms from state capital Lucknow, this morning.

"The double-decker bus carrying 60 migrant workers from Nepal to the western Indian state of Goa was parked along the highway following a tyre puncture. Unable to spot the bus, the truck driver hit the vehicle from behind," a police officer told the local media.

The impact of the crash left the bus driver, who was replacing the punctured tyre, and three passengers dead on the spot. "The 24 other injured occupants of the bus have been hospitalised," the officer said.

Local TV channels reported, quoting health officials, that six of the injured passengers were shifted to a government hospital in Lucknow after their condition at Barabanki district hospital worsened.

"A probe has been ordered into the accident," the police officer said.

Road accidents are common in India, with one taking place every four minutes. These accidents are often blamed on poor roads, rash driving and scant regard for traffic laws.

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The Indian government's implementation of stricter traffic laws in recent years has failed to rein in accidents, which claim over 100,000 lives every year.