A man has been arrested after four cyclists were seriously injured in a collision with a VW Scirocco on the A15 at Ashby De La Launde at 2.25am this morning.
The cyclists were part of a large organised bike ride travelling to Sleaford. The event involved riders from across the UK. Police say they cannot release further information about the injured cyclists until all relatives have been informed.
A 29 year-old local man was arrested a short time later and remains in custody.
Part of the A15 was closed with diversions in place for several hours.