The M621 in West Yorkshire is closed eastbound between Junction 2 (Holbeck) and Junction 2a and westbound between Junction 3 (Leeds) and Junction 2 due to a police-led incident, National Highways said.
“Due to the nature of the incident, the road may be closed for some time,” National Highways said.
Traffic officers are on the scene to assist with traffic management.
This is an ongoing event and updates will be provided.