The Highways Agency is reporting the closure of the A1 as running from the A52 junction at Grantham and the A46 junction at Newark.
The road is closed in both directions following a collision between a lorry and van which resulted in a fire. The lorry is believed to have been carrying gas canisters.
The Highways Agency is advising northbound traffic to follow the “hollow yellow circle” diversion route via the A52/A46. Southbound traffic is advised to follow the “hollow yellow diamond” diversion route via the A46/A52.
Long delays are expected.
The incident happened at around 5.30am today (Wednesday) near to Claypole.
If you saw the crash contact Nottinghamshire Police on 101, quoting incident 115 of 19 June 2013, or call Crimestoppers anonymously on 0800 555 111.