Detectives from the North West Metro Serious Crime Taskforce arrested two people last night as part of an investigation into a series of armed robberies in the northern suburbs.

A 21-year-old man and a 13-year-old boy, both from Heidelberg West, were arrested at the intersection of Murray and Plenty roads in Preston shortly after 7pm on Thursday, 20 July.

They have both been charged with a series of offences including armed robbery, attempted armed robbery, robbery and assault.

Both faced an out of sessions court hearing last night and were remanded in custody.

The 21-year-old will appear at Melbourne Magistrate’s Court today while the teenager will appear at a children’s court today.

The investigation into the series of five armed robberies, which took place in Heidelberg West and Preston between 17 and 18 July, remains ongoing.