A 15-year boy from Latham has been arrested running away from a car that police say was used in an armed robbery this morning.
Three offenders, one armed with a knife, robbed the 7-11 service station on Chinner Crescent, Melba, at about 5.35am today.
They left the store in a blue Ford Falcon with cash taken from the cash register.
Police found the car a short time later and caught one 15-year-old running away. He was arrested and charged with aggravated robbery.
Investigations are continuing to identify the remaining two offenders.
Anyone who witnessed the incident or has any information can contact Crime Stoppers on 1800 333 000 or at act.crimestoppers.com.au. Information can be provided anonymously.