A GLASGOW school has suffered extensive damage after two youths deliberately started a blaze on its roof.

CCTV captured the teenagers as they climbed up the side of Thornliebank’s Woodfarm High School at around 10pm on Friday.

They were seen to light a fire before returning to the street to watch fire crews respond to the blaze.

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Described as white, aged 15 to 18, and wearing dark clothing, it is believed one was wearing a grey hooded top.

Appealing for information, Det Con Stephen Walker of Govan CID said: "Thankfully, no-one was injured in the fire which has caused significant damage to the roof and the top floor of the school.

"These youths have absolutely no regard for their own safety, nor the property or the cost or disruption their actions have caused. Indeed, they appear to stay in the area to watch as emergency services attend to deal with the fire.

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"There are a number of homes near the school, thankfully, not affected by the fire, but it may be the case that neighbours saw the youths on the roof or hanging about the area either prior to or afterwards."