Police claim the driver of an allegedly stolen car was holding a pistol while doing burnouts on a high school oval.
The alleged driver, a 16-year-old boy, who was previously wanted by police, was arrested on Sunday for dangerous driving relating to an incident the week before.
About 1.10pm on Friday, police officers saw a white BMW hatchback, which was reportedly stolen from a home in Yarralumla, driving dangerously along Mugga Lane.
A short time later, the vehicle was seen conducting burnouts and driving dangerously near students on Calwell High School sports oval.
The driver of the vehicle, who cannot be named due to his age, was also reported to be holding what appeared to be a pistol.
About 1.25pm, police saw the BMW in Theodore, and tried to deploy a tyre deflation device, however, the driver of the vehicle allegedly rammed a police car to escape.
The hatchback stopped shortly afterwards and officers arrested two teenage boys after a short foot pursuit.
A third boy, the 16-year-old, was last seen running through the grounds of St Francis of Assisi Primary School.
As a precaution, police placed both schools into lockdown.
Over the weekend, police continued their investigation to locate the 16-year-old.
About 4.30am on Sunday, police were made aware of a burglary at a home in Deakin, where two vehicles were allegedly stolen, one being a silver Volkswagen T-Roc.
That evening officers saw the Volkswagen travelling at excessive speeds throughout Tuggeranong.
The vehicle was found a short time later near a home in Chisholm, and following a short negotiation, the 16-year-old boy was arrested after surrendering himself to police.
He was set to be charged with failing to stop for police, dangerous driving, unlicenced driving, driving a motor vehicle at police, and breaching a good behaviour order.
The boy was scheduled to face the ACT Children's Court on Monday.
Enquiries are ongoing into the reports of a firearm, and police would urge anyone with information relating to this to contact Crime Stoppers on 1800 333 000 or via the Crime Stoppers ACT website. Please quote reference number 7822330.