A terrifying picture shared on social media appears to show a 'killer clown' on a bus in Stirling. 

A Stirling resident shared the picture on Facebook and claimed the sinister clown was peering out of a First bus. 

The image has attracted hundreds of shares and comments with worried Scots expressing their concerns over the bizarre US craze which appears to be sweeping across the UK. 

Glasgow Times:

Terrence Christie said: "Stirling. Thats way too close for comfort."

Sophie MacLeod said: "We're stayin indoors!"

The majority of social media users were left rattled by the image, however some thought the prank was funny with one person writing: "I hope the driver charged the clown full price."

Glasgow Times:

Glasgow Times:

A string of reported incidents involving pranksters dressed as clowns has forced Police Scotland to warn any wannabe jokers that action may be taken against them.

Supt David Duncan, of Police Scotland, said: "We have had a few sporadic reports of individuals dressed as clowns in some areas in Scotland.

"It is assessed that there is a current trend of similar incidents on social media, many of which have been confirmed as hoaxes and emanate from overseas.

"The reports which have been made to local police officers are being investigated and do not specifically involve threats or violence.

"However, any person seeking to cause distress and potential harm to anyone should be aware that police will take action.

"If anyone has any concerns they should report the matter to police."