Police have named a woman who died after a road crash on Sunday.
The incident took place at around 2.15am on the A9 between the Inveralmond and Broxden roundabouts, near Perth.
The woman has been named as Doreen Williams, 80, from Perth.
Her next of kin have been informed.
Detective Inspector Ray Birnie, the senior investigating officer for the enquiry, said: “Our thoughts are foremost with Doreen’s family.
“They are devastated by their loss and they are currently being supported by specialist police officers during this difficult time.
“Extensive police enquiries are ongoing and I can confirm that the driver of a white van has now responded to the initial witness appeal.
“The driver was able to provide significant information and has since been eliminated from our enquiry.
“However, it is absolutely vital that we speak to everyone who was travelling south on the A9 between the roundabout at Inveralmond and the roundabout at Broxden about 2.15am on Sunday 4 November.
“We need to speak to anyone who saw Doreen walking along the A9 or on nearby Dunkeld Road or who saw an HGV lorry stopped on the nearside lane of the southbound carriageway with it’s hazard warning lights illuminated.
“We know that several vehicles passed both the incident and the HGV. I urge these drivers to come forward now.
“Doreen’s family need the help of the public to find the answer to what happened to their mother.
“If anyone has witnessed this incident, driven past it or has dashcam footage, then please call Police Scotland on 101 quoting reference number 0672 of 4th November or speak to any Police officer.
“To remain anonymous, call the charity Crimestoppers on 0800 555 111.”