Police are appealing for witnesses after people were seen performing wheelies on motorbikes in Aberdeen city centre.
The incidents, which happened in Dee Street and Langstane Place between 11pm on Saturday and 12.15am on Sunday, were reported to police on Thursday.
The motorcycles have been described as a white Kawasaki ZR 800 and a white and blue off-road motorcycle.
Road Policing Officer Lee Thompson said: “This manner of driving is extremely reckless made all the more so by the fact the city centre was busy at the time this happened with people out enjoying the night life on offer in Aberdeen.
“I would encourage anyone who has witnessed this or has any information to contact police on 101 using reference number CF0073910319.”