A seven-year-old boy is fighting for life after he was hit by a car at Bairnsdale in Victoria's east on Saturday.

The boy was struck in Main Street shortly after 3pm and taken to Bairnsdale Hospital with head injuries.

Paramedics attend to the injured boy in Main Street, Bairnsdale, on Saturday. Photo: Seven News

Ambulance Victoria spokesman John Mullen said the seven-year-old was flown to the Royal Children's Hospital. 

On Sunday morning hospital spokeswoman Laura Richards said the boy remained in a critical condition.

Paramedics at the scene in Bairnsdale. Photo: Seven News

The driver and passenger of the car are assisting police with their inquiries. Investigators are reviewing CCTV footage and speaking to witnesses.