The investigation of the Kenmore hospital fire is over.
Two teenage boys aged 13 and 14 have been dealt with under the Young Offenders Act following inquiries into the fire at the abandoned psychiatric facility on Saturday October 16.
The boys attended Goulburn Police Station this week and will be dealt with under the Act for destroy property in company using fire and enter enclosed lands.
Earlier this week, NSW Fire and Rescue Inspector Chris Hughes said he believed the fire was probably "a deliberate act".
"It started in the attic of the building based on photos and eyewitness accounts," he said.
"The building was built in 1887 to 1897, so the timbers were quite old.
"Once they started burning, nothing was stopping it.
"A small fire could caused damage of that proportion.
"There were plenty of flammable items in the building like linoleum and paint.
"It burnt through the timbers, the floors collapsed and the fire progressed down below."
Inspector Hughes also said vandalism had previously occurred at the fire site.
"Within the building, there had been plenty of reports of smaller fires and of people making entry into the smaller surrounding buildings," he said.
"There's plenty evidence of smashed windows and littering too."
The hospital was unoccupied at the time and no injuries were reported.
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