Police say they aware of a video currently circulating on social media about an alleged incident in a taxi.
A post from the Constabulary said the matter is now an active investigation.
Police said: “We understand that the video is already in the public domain, but we are asking people not to speculate or draw conclusions while officers establish the full circumstances.
“Please do not take matters into your own hands. Any information or concerns should be passed directly to police.”
If you have information that may assist, contact Police Headquarters on 01624 631212 or provide it anonymously via Crimestoppers on 0800 555 111.