Police have charged a 16-year-old Caboolture boy following two alleged armed robberies at Deception Bay this afternoon.

Around 3.30pm a boy entered a service station on Deception Bay Road and walked behind the counter before allegedly threatening the male attendant with a knife while making demands for cash.

The attendant was able to lock the boy out of the service counter area however he damaged a wall and made further unsuccessful attempts to access the cash register.

The attendant was not injured and the boy fled on foot empty handed.

Around 3.35pm a boy entered a nearby bottle shop on Deception Bay Road and allegedly threatened the male attendant with a knife.

The boy fled on foot empty handed after the attendant refused to hand over cash.

Police attended and following assistance from witnesses the boy was located a short time later.

The boy was charged with two counts of attempted armed robbery and will be dealt with under the provisions of the Youth Justice Act.