Man exposes himself to children at Gonerby Hill Foot
Extra police patrols are being put on near Grantham after a man exposed himself to a group of children in a park.
Officers said the offender pulled down his trousers and committed an indecent act at the park in Gonerby Road, Gonerby Hill Foot, on Thursday.
He is described as 18 to 20 years old with dark hair and was wearing a blue top and cream trousers.
Local schools and parents have been informed, said the Lincolnshire force.
Anyone who believes they saw the man at the time - at about 1710 BST - has been urged to contact police.