Housing affordability advocates are set to call on the government to turn the youth justice centre into affordable housing. Credit:Wayne Taylor

"We got called to an incident there at 8.51pm," he said.

"We've sent a couple of units and we're still on stand by," he said at 10.30pm.

The Metropolitan Fire Brigade confirmed firefighters were also on stand by.

Department spokesman Mike Griffin did not elaborate on the nature of the incident.



"At no point was there a risk to security of the facility," he said.



"The department will thoroughly examine the circumstances leading up to the incident."