A total of 14 cars, eight of which were Ferraris, crashed in a chain collision on a Japanese expressway Sunday, but police have not determined the cause.

The chain collision occurred on a Japanese expressway during a sportscar event Sunday.

Police say the accident likely occurred after a Ferrari driver tried to change lanes and hit the median, then spun and collided with other cars. Police say the road was wet, and an eyewitness said the drivers were traveling at 87 to 100 miles per hour, according to Japan Today.

Bloomberg reports that the Ferrari driver who changed lanes, a 60-year-old man from Fukuoka prefecture, may face charges if it is determined he was speeding. 

Footage shows the mangled cars on the freeway:

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