The largest illegal cannabis farm ever found in Scotland has been uncovered inside a former college building.

About 5,000 plants were found inside the Nairn Building, formerly part of Fife College's Priory Campus, in Kirkcaldy during a police raid last week.

Officers said the class A drug, which weighed almost one metric tonne (1,000kg), had a value of about £12m.

An investigation into the cultivation remains ongoing.

Det Insp Samantha Davidson described it as the "most significant cultivation ever seen in Scotland".

She added: "This was a sizeable and highly organised cultivation with the potential to generate a multi-million-pound return through illegal means.

"We will continue to act on intelligence and use all available resources at our disposal to disrupt the production and supply of controlled drugs.

The Nairn building, which is category B-listed, was a former mill before being taken over by Fife College.

It closed its doors to students in 2016 and was later sold off to developers.

A planning application to build 39 flats alongside a gym and retail space was lodged in 2021, but the site has remained empty ever since.