Emergency service workers help people wounded in an accident at Gran Turismo Polonia in Poznan, Poland. REUTERS/Lukasz Cynalewski/Agencja Gazeta
The accident occurred at the start of the three-day Gran Turismo Polonia event which draws amateur motor enthusiasts from all over Europe. At least 150 luxury cars are taking part in the event.
Police spokesman Andrzej Borowiak said police were questioning the Norwegian motorist involved in the accident.