Three youths charged with arson after fire at Ashley Youth Detention Centre in northern Tasmania

A fire truck drives through the Ashley Youth Detention Centre carpark.

The Tasmania Fire Service attended the youth detention centre. (ABC News: Ashleigh Barraclough)

In short:

Police were called to Tasmania's only youth detention centre on Sunday following a reported disturbance involving three armed detainees.

Police said while they were there, the youths set fire to a building, causing extensive damage.

What's next?

All three have been charged with arson and destroying property and are being held in the centre while they await court.