Four suspected illegal immigrants have been arrested by Lincolnshire Police after an operation north of Grantham.
A police helicopter was used in the search for the illegal immigrants in the Foston area at around midday on Friday, November 25.
Two men were arrested at the Esso filling station and one at the Coldstore in Marston.
Another man was arrested on Church Lane in Foston.
A spokesperson for Lincolnshire Police said that it was unclear how they had ended up there.
The force is now liaising with the immigration department at the Home Office.