Wiltshire Police are hunting for a man seen near Malmesbury wearing nothing but stockings and suspenders.
Police were alerted to the incident by a motorist at 2.30pm last Monday.
The motorist reported a man standing in stockings and suspenders in an open sliding side door of a white van parked at the roadside of the B4040 between Malmesbury and Charlton. The man is described as white, and in his forties.
Police said they are not linking it to another incident in Malmesbury last month, when a man, in his forties, stripped naked in the Cancer Research UK shop in the High Street.
Sgt Martin Alvis of Wiltshire Police said: “We are not drawing a link between this and the incident in the Cancer Research shop, but we remain open-minded to it.”