A Hungarian court has ordered the preventative arrest of the Polish bus driver involved in a severe accident on Sunday. The crash, which occurred on the M3 motorway in eastern Hungary, resulted in 12 fatalities and left dozens injured. Authorities are investigating the cause of the incident, with the driver now in custody pending further inquiry. The decision to arrest the driver comes after initial investigations into the circumstances surrounding the collision. The accident involved a Polish-registered bus and sparked a large-scale emergency response. Further details regarding the condition of the injured and the full extent of the investigation are expected to be released soon.