A heavyset bald man was spotted walking naked over a Dundee footbridge near Ninewells Hospital on Thursday night.
Police Scotland is appealing for witnesses after the man was seen on a footbridge on Ninewells Drive, which leads to Ninewells Hospital, around 8.25pm on Thursday.
The man is described as being between 40 and 50-years-old, of heavy build and with a bald head or shaved hair.
He was not wearing any clothes of shoes.
Although the incident took place close to the hospital, NHS Tayside said they do not comment on police matters.
Anyone who was in the area of Ninewells Drive or who saw anyone acting suspiciously before or after this time, is asked to contact Police Scotland on 101. Alternatively information can be passed via the charity Crimestoppers on 0800 555 111.