A 13-year-old has been charged over an alleged armed robbery in Adelaide's CBD, while two boys aged 11 and 12 have been arrested in connection with a stolen car.
Police say the 13-year-old boy was armed with a box cutter when he held up a convenience store on North Terrace, opposite the Adelaide Railway Station.
The teenager allegedly threatened a staff member at the store and stole a mobile phone just before 5am.
Senior Constable Matt Brown said the boy was later arrested while hiding under the Riverbank Bridge to Adelaide Oval.
"The suspect was searched and the stolen mobile phone and box cutter were located in his possession," he said.
"The 13-year-old boy from Sellicks Beach was charged with aggravated robbery, so [that was] some good work by patrols there."
The teenager was bailed to appear in the Adelaide Youth Court next month.
Boys arrested over stolen car
Two other boys were arrested after police noticed a Toyota LandCruiser driving on Portrush Road in Payneham.
The vehicle had earlier been stolen from a street in Greenacres.
Police followed the four-wheel drive onto Osmond Terrace in Norwood where the boys allegedly abandoned the vehicle and ran towards Magill Road, where they were arrested.
An 11-year-old boy from Woodville West and a 12-year-old boy from Greenacres were charged with illegal use of a motor vehicle.
They were also bailed to appear in the Adelaide Youth Court next month.
Police were unable to located a third person who was in the car.
