Detectives investigating the crash on the M5 in which seven people died have appealed for anyone with video footage of a nearby firework display to send it to them.
Avon and Somerset Police said officers are still trying to piece together what happened near the motorway before the accident on the northbound carriageway near Taunton on November 4.
Lorry drivers Terry Brice, from Patchway, south Gloucestershire, and Kye Thomas, from Gunnislake, Cornwall, died in the crash, along with father and daughter Michael and Maggie Barton, from Windsor, Berkshire, grandparents Anthony and Pamela Adams, from Newport, South Wales, and battle re-enactor Malcolm Beacham, from Woolavington, near Bridgwater.
One person also remains in a stable condition in hospital.
Officers are investigating whether smoke from the firework display at Taunton Rugby Club may have been a factor in the crash, which happened in foggy and wet conditions at around 8pm.
Detective Inspector Sarah Davenport said: "We have received a huge number of calls and messages from members of the public and we are very grateful for this, however what we continue to appeal for is footage of the fireworks event that was taking place at Taunton Rugby Club.
"This event was a pay-at-the-gate event so there is no list of those people who attended. We need to ascertain who was there as you may be a witness.
"Many people who attended this event have already made contact and we thank you for that. Others have not and we need to speak to you. You may think any information or footage that you have may not be relevant but please let us decide."
The force has set up a dedicated email address - m5footage@avonandsomerset.police.uk - for people to send in their footage to the team of 30 officers investigating the crash.