I would like to thank every person who has come forward with information following this incident. ... What I am now urging is that anyone who was in this area - especially on the A3102 heading towards Royal Wootton Bassett between 10.30pm and 11pm on Sunday evening, to contact us immediately. The smallest amount of information might prove vital. We believe this woman was struck by a vehicle which has then failed to stop at the scene. It is possible that the driver of this vehicle might not have realised they have hit anything or might have thought they had struck an animal.
The road was closed for 8 hours while officers from the Wiltshire Police Serious Collision Investigation Team investigated the scene.
The Collision Team can be contacted on 101 extension 720 3111 or via Crimestoppers on 0800 555 111 where information can be left anonymously.
More top news
A couple who lost an unborn baby to complications from twin to twin transfusion syndrome have raised money for research into the condition.
Dorset has a new migrant population - barrel jellyfish are washing up in their dozens on its shores.
The family of one of Britain's oldest poppy-sellers say charities which bombarded her with donation requests were not to blame for her death