Emergency services at scene of collision on A1 at Great Ponton near Grantham
One lane is closed on the A1 Northbound following a two-vehicle road collision near Grantham.
Police, the ambulance service and two fire engines are currently dealing with the incident on the A1 Northbound at Great Ponton.
The AA is reporting queueing traffic for four miles and delays on the A1 at the Hungerton turn off.
Photo: R. S. Mortiss
Traffic is backed up as far as Colsterworth, with average speeds around five miles per hour.