People Were Killed When a Polish-registered Bus Overturned on a Highway in Hungary Early Sunday, According to the Country's Prime

The accident occurred at 1:00 a.m. on the M3 motorway near Mezokeresztes, east of Budapest, police said in a statement. Prime Minister Peter Magyar confirmed the death toll and reported that 10 other people were injured in the crash. He noted that the injured are in serious condition.

The cause of the overturn has not been disclosed by authorities. Emergency services responded to the scene following the incident. The bus was traveling on the M3 highway, a major route connecting Budapest to eastern Hungary, when it overturned.

Police have not released further details about the passengers or the circumstances leading up to the accident. This is a developing story. More information will be provided as it becomes available from official sources. The Hungarian authorities are expected to conduct an investigation into the fatal crash.