A teenage boy has been seriously injured after being struck by a car in an alleged hit and run.

Emergency services were called to Beauchamp Road in Maroubra, in Sydney’s east, at 4am on Saturday following reports of a pedestrian being hit by a car.

The teen suffered serious injuries to both his legs in the collision.

Know the news with the 7NEWS app: Download today

He was treated at the scene before being taken to Randwick Hospital in a stable condition.

The driver allegedly fled the scene before police arrived.

A crime scene has been set up and investigations into the cause of the crash continue.

Several lines of inquiry are being investigated by police, including whether the incident was deliberate.

Anyone who may have witnessed the incident or has information is urged to contact Crime Stoppers on 1800 333 000.