There's been a terrifying armed robbery at a McDonalds at Chadstone. A parent of a young worker at the store has told 3AW mornings up to half a dozen youths - possibly linked to the Apex gang - jumped the counter and held knives to the throats of teenage staff members. Police have confirmed the incident happened on Sunday night around 8.30pm. A quantity of cash was stolen. Nobody was injured. No arrests have been made. A similar attack happened at the McDonalds outlet on EastLink at Scoresby on August 10. It's unclear whether the two incidents are linked.