A fresh appeal for witnesses has been made following a shooting in Boston on Saturday night.
A 27-year-old Polish man remains in hospital after suffering gunshot wounds. Three men who were arrested have been bailed.
But police say they do have two outstanding suspects and are now seeking to reassure the public that this was an isolated incident.
Police discovered the injured man at around 11pm on Brothertoft Road. He was taken to Pilgrim Hospital, Boston with gunshot wounds and has since been transferred to Queens Medical Centre, Nottingham where he remains in a serious but stable condition.
At this stage it is not thought that his injuries are life-threatening.
Three men were arrested in connection with the incident at an address on Larkspur Croft, Boston following a police firearms operation. A firearm has been recovered.
Chief Inspector Paul Timmins said: “Any firearm-related incident is dealt with some seriousness and I have a team of officers currently working on establishing the facts of this incident.
“Let me reassure the public of Boston that incidents involving, or potentially involving, firearms are few and far between.
“The investigation is at an early stage, however the incident does not appear to have been a random offence and I can now confirm that two outstanding suspects have been located and arrested.
“Our enquiries will continue and I would urge anyone who has any information to please contact us on 101 referencing incident 434 of 13th June”.
Officers remain at the address on Larkspur Croft and the premises are cordoned off.
Anyone with information should contact Lincolnshire Police on 101 or Crimestoppers anonymously via 0800 555111.