AN estimated 10,000 tyres dumped at a disused farmyard barn in Port Glasgow were abandoned there by a criminal network, an official investigation has found

A derelict farm at Devol has been stuffed full with tyres and one barn overflowing with them is within just a few metres of houses on the estate.

The huge mess is highlighted in a new BBC Scotland documentary, in which SEPA bosses reveal that organised crime gangs are illegally dumping or burying thousands of tonnes of waste across Scotland.

The programme - Disclosure: Dirty Business - is available to watch on the iPlayer.