The fire occured on Saturday night on the former site of foyle College. (Pic: Christopher Tarr)
Police are appealing for information and witnesses following an overnight fire in Derry.
Inspector Craig said: “We received a report at approximately 9.20pm on Saturday evening, July 19 that a building in the Duncreggan Road area of the city had been set alight.
“Officers attended the scene to assist with road closures in the area, alongside colleagues from the Northern Ireland Fire and Rescue Service who tackled the blaze.
“The area has now fully reopened to road users – and enquiries are continuing today to determine exactly what happened.
WATCH: Fire at former Foyle College junior school site in Derry
“Thankfully no injuries were reported, however extensive damage was caused, and the fire is being treated as suspected deliberate ignition.
“Anyone who has information regarding what happened is asked to contact police on 101, quoting reference number 1467 19/07/25.”
A report can be submitted online using the non-emergency reporting form via http://www.psni.police.uk/ makeareport/ or you can contact Crimestoppers anonymously on 0800 555 111 or online at http://crimestoppers-uk.org/
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