A FORMER primary school building on Anglesey is thought to have been deliberately set on fire.
Police say they are treating the incident, which took place at the Anglesey Teachers Centre on Boxing Day, as arson.
Bridge Street was closed in both directions while firefighters battled the blaze.
A spokesperson for North Wales Police said: "We received a call at 5.58pm from the Fire Service on Thursday to attend an incident at the Anglesey Teachers Centre on Bridge Street, Llangefni.
"We are treating it as arson and enquiries are ongoing at this moment in time."
A North Wales Fire and Rescue service spokeswoman also confirmed the fire had started as a result of "deliberate ignition".
Firefighters were called to the blaze at 5.40pm and crews from Holyhead, Llangefni and Benllech attended, as well as an aerial ladder platform from Bangor.
The fire was extinguished by just before 1am.
The Anglesey Teachers Centre, located opposite Home Bargains, has been derelict for quite some time, but was formerly used for computer studies for primary school pupils in the area.
It is the second time this year there has been a fire at the building - with a similar incident having occurred in May.
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