Police say they have received almost 200 calls from people seeking information about last week's multiple vehicle crash on the M5 in Somerset, which left seven people dead.
An investigation into one of the worst motorway crashes seen in Britain has now begun.
According to Avon and Somerset Police, the public response to the inquiry has been huge.
Those killed in the crash include lorry drivers Terry Brice, from Patchway, south Gloucestershire, and Kye Thomas, from Gunnislake, Cornwall.
Among the other victims were 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, Somerset.
Detective Superintendent Mike Courtiour, who is leading the probe into the accident, said: "Since this heartbreaking event occurred we have been working non-stop to establish what happened and those investigations are still very much ongoing."
He added that they have deployed more than 30 police officials and staff to work on various details of the incident.
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