AN investigation has been launched to discover the cause of a fire on Teesside.

Up to 20 firefighters spent two hours fighting a blaze on allotments off Redcar Lane, Redcar.

The fire, early on Sunday, destroyed a large shed and damaged four others.

Steve Patton, from Redcar fire station, said: "At the moment, we do not know what caused the fire. We do not know whether it was malicious, deliberate or accidental. There will be an investigation."