A van and a car were in collision on the A1121 Boardsides at Hubberts Bridge this morning (Monday) leaving the road closed.
A Lincolnshire Police spokesman said the incident was called in to them at 5.24am.
They said injuries were not thought to be life threatening and the road was now clear.
Anyone who may have witnessed the accident who has not already spoken to police should call 101 quoting incident 35 of Monday, February 13.
The incident comes soon after another accident on the same stretch of road in the early hours of Saturday morning in which a 22-year-old died.
Police said the man was driving a grey Ford Focus and was travelling from the Bracebridge area of Lincoln with two other vehicles in convoy - a black Ford Focus and a black Ford Fiesta.
A spokesman said the collision was reported to the force at 1.30am.
Two people, who were driving the other vehicles and aged 22 and 28, have been arrested on suspicion of causing death by dangerous driving.
The police spokesman confirmed this morning that they were released on bail to a later date.
There was a passenger in the grey Focus who sustained minor injuries.
Police are keen to speak with any motorists who were travelling between Lincoln and Boston at this time, or any witnesses to the collision itself.
Call 101 quoting incident 21 of Saturday, February 11.