Police have charged three men and a teenage boy after the armed robbery of a fast food delivery driver at Bray Park last night.

Initial investigations suggest just after 11.15pm, the female driver was attempting to make a delivery at a Coronet Drive address when she was allegedly approached by two men and threatened with a knife.

The two men allegedly fled the scene with a sum of cash, a mobile phone and food items.

The two men, a 21-year-old and two 17-year-olds, have been charged with armed robbery and are due to appear in Pine Rivers Magistrates Court today.  

The 14-year-old boy will be dealt with under the provisions of the Youth Justices Act.