- 20 December 2024, 19:22 GMT
A least one person has been killed and several injured in the incident in Magdeburg, according to German public broadcaster MDR.
The suspected driver of the car has also been arrested, MDR said, citing a government spokesman.
Video on social media shows a number of people laying on the ground and emergency services in attendance.
An "extensive police operation" is underway and the market was closed, according to local authorities.
This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version.