A car which struck a female pedestrian on a dual carriageway in the early hours of Monday morning did not stop following the collision, police have said.
Emergency services were called to the A1, between the Thistly Cross and Spott Roundabouts in Dunbar after the hit and run at around 2.55am on Monday.
A 45-year-old woman was pronounced dead at the scene.
The vehicle that struck her did not stop and has not yet contacted police to make a report.
The road reopened at 3.50pm following examinations and the police investigation remains ongoing.
Officers are appealing for any motorists with dashcam footage at the time of the incident to make themselves known.
Chief Inspector Ben Leathes, local area commander for East Lothian, said: “Our investigation into the circumstances surrounding the incident are ongoing and the victim’s family is being supported by our officers.
“I wish to thank the members of the public who have already contacted us and provided us with copies of dash cam footage but I ask anyone who was in the area at the time and has not yet come forward to get in touch with police as soon as possible.
“I also now appeal to any motorist that was driving south on the A1 near Dunbar between 2am and 3am and who has not already contacted police to do so now.”
Information can be passed to officers via 101, quoting reference number 0257 of Monday, April 24.