A woman injured in a collision in Shipton Moyne, near Tetbury, on Saturday (23rd December), has died in hospital.
The woman, aged in her 20s, is believed to have fallen off a quad bike that overturned on Whitehouse Lane shortly after 2pm.
She was taken to Southmead Hospital in Bristol but sadly died from her injuries on Christmas Day.
A man is believed to have made off from the scene on a quad bike and was later found and arrested following a search involving the police helicopter. A second man was also later arrested.
Two men, aged 29 and 30 and from the Cotswolds, have been bailed with conditions to return to police in February, pending further enquiries.
Officers are still seeking information in connection with the collision.
Anyone who witnessed the collision or saw the quad bike being driven prior to the incident can provide information to police online by completing the following form and quoting incident 251 of 23 December: https://www.gloucestershire.police.uk/tua/tell-us-about/cor/tell-us-about-existing-case-report/