A vehicle flipped on its side on a road in Tongatapu last night.
A photo of the incident was posted on Facebook.
A police van was spotted beside the flipped vehicle.
The details of what had happened remain unclear,
There have been no reports of injuries.
Tonga Police have yet to comment.
The kingdom observes yesterday, September 17, as a public holiday for the 39th birthday of Crown Prince Tupoutoʻa ʻUlukalala.
The Crown Prince is the heir to the throne.