Police are responding to reports of a pedestrian on the M1 at Wakefield this afternoon.
West Yorkshire Police Contact Management Centre said they had received "several" reports of a person close to the road.
The incident is believed to have happened close to junction 39 (Denby Dale) at around 12.20pm today.
Motorway cameras appear to show a person who has left their vehicle at the side of the motorway.
West Yorkshire Police said: "Please be aware we have been receiving several reports of a pedestrian near Junction 39 on the M1 Northbound."