A cyclist has been killed after a hit and run incident on Bourne Road in Spalding, on September 14.
A 27-year-old man was pronounced dead at the scene and officers say the incident happened some time after 9pm on Friday night.
Police believe the man was hit by a vehicle which then failed to stop.
The family of the man from the Pode Hole area became concerned when he failed to return from work at his normal time on his bicycle.
They set off to search along his usual route and found him seriously injured at the side of the A151 on Bourne Road, Spalding.
Lincolnshire Police were alerted to the incident by the Ambulance Service at 00:15am on September 15.
Information is sought in relation to any vehicle which appears to have sustained unexplained front or side impact damage on the evening of Friday September 14.
Police are also appealing for the driver, any passenger in the vehicle or anyone with any information to come forward.