Police are looking for a gunman after a shooting in Melbourne’s west overnight.

Just after midnight a man and woman were driving on Melton Highway in Melton when a shot was fired into their car.

The couple pulled into a nearby service station and called triple zero.

A man has been injured following a shooting in Melbourne's west overnight. (9news)

Police are seeking information after a gunman opened fire on a moving car in Melbourne's west overnight. (9news)

The man was taken to hospital for minor injuries.