A multi-vehicle accident has closed two lanes on the M18.
Emergency services are at the scene on the northbound carriageway, between junction one and junction two, for the A1.
The accident involves two cars, a two vans and a lorry.
A man was cut from one of the vehicles and taken to the Northern General Hospital, in Sheffield.
Motorists are experiencing severe delays in the area.
The Highways Agency said that delays were expected for several hours.