Two girls have attempted to escape Don Dale Youth Detention Centre.

Authorities say both inmates hadn’t breached the juvenile prison’s external perimeter fence before they were caught by guards on Wednesday afternoon.

The detainees made a break for it while being transported between prison blocks, Territory Families said.

It comes as the NT government scrambles to beef up security at the notorious jail after two boys escaped and went on an alleged three-day crime spree over the weekend.

Police unleashed the dog squad and tasered Josiah Binsaris, 17, who was arrested on Saturday morning at Adelaide River after allegedly trying to run officers off the road on a remote stretch of the Stuart Highway.

Binsaris and 17-year-old Trey Mawson sparked a dramatic manhunt after they escaped from a low-security block of the detention centre on Wednesday night.

An alleged accomplice, Ezra Austral, had to be airlifted to Royal Darwin Hospital when his car rolled during a high-speed police chase that stretched over several hundred kilometres.

The 19-year-old, alongside Binsaris, was charged with a string of serious offences including recklessly endangering life and aggravated robbery and is due to face court on Thursday.

The NT government has ordered an urgent review into Don Dale’s security classification procedures and commissioned upgrades to the facility.

The juvenile justice royal commission has advised the Labor government to hold off on building new infrastructure to replace Don Dale until it delivers a final report in August.

The government has spent $3 million to improve Don Dale’s security since coming to office last August and Chief Minister Michael Gunner has demanded answers from the facility’s hierarchy as to why kids are still escaping.
– AAP