There have been major delays on the M5 in south Gloucestershire, following an earlier fatal accident, in which a male pedestrian was hit by a lorry at around 4.40am, Thursday 15 September.
He was then struck by a number of other vehicles, dying at the scene.
Police believe he might have left his car, after parking it on the hard shoulder. They are working to identify the victim and contact his next of kin.
Two northbound lanes remain closed, while investigation work is being carried out between Junction 14 Thornbury and Junction 16 Aztec West.