A 160-year-old smokehouse that supplies fish to the Queen has been taken over by an Estonian food production company.

John Ross Jnr, of Sinclair Road in Aberdeen, has changed hands in a £13m takeover by PRFoods from Tallinn.

The smokehouse was started by John Ross in 1857 and practises a cold smoking method to give the fish a distinctive flavour.

Using red brick kilns that date back to the 19th century, the smokehouse holds the Royal Warrant by appointment to Her Majesty the Queen and supplies the royal kitchens throughout the UK.

The takeover marks the end of about 30 years of family ownership led by Andrew Leigh, 71, who built the international food brand, exporting to more than 30 countries.

PRFoods has been listed on the Tallinn Stock Exchange since May 2010 and sells across Europe as well as supplying to the Japanese market.