A 28-year-old man was taken to hospital with serious injuries after a disturbance in Bourne.
Two men, aged 30 and 33, have been arrested on suspicion of attempted murder, while another two men and a woman, aged 25, 28, and 21, have been arrested on suspicion of possessing drugs with intent to supply.
Lincolnshire Police are appealing for information and would like to speak to anyone who was in the area of Bedehouse Bank and Eastgate between 10pm and 11pm on Saturday, October 11.
No further comments were made.
Author's summary: Arrests made after man seriously injured.