Four hundred litres of diesel spilt on the M1 near Bucks this morning.

Part of the motorway, between junction 15 (Northampton) and junction 14 (Milton Keynes) has been closed off as a result, with drivers being warned of long delays and advised to find alterntive routes.

Firefighters from Newport Pagnell, Broughton and West Ashland were called to the southbound carriageway between junction 15 (Northampton) and the Newport Pagnell Service Area at 11.30am today.

The diesel is said to have leaked from the split tank of a lorry, and was contained on the motorway.

Bucks Fire said crews used an environmental protection kit and the incident was left with Highways England.