Police say a man is in critical condition after he is struck by a car while trying to prevent his vehicle from being stolen in Melbourne’s northwest. Multiple outlets report the incident occurs in Heidelberg West, with police describing it as a hit-and-run connected to an attempted car theft. The man is said to have been attempting to stop his own car being taken when he is hit, resulting in serious injuries. One report states the man remains in hospital fighting for his life. The circumstances leading up to the collision are described consistently across the sources, with the key detail being that the injured man acts to stop the theft of his vehicle. The reports do not provide additional information on the driver’s identity or the vehicle involved beyond describing the event as a hit-and-run. Police are expected to investigate the incident as part of their response to car theft and related offences. The man’s condition is reported as critical across all sources.