Dashcam captures car spinning into a ditch!

Whilst travelling down a B road in Derbyshire, England, the driver of the dashcam car spotted the oncoming car had lost control and started spinning off the road into a ditch! He got out to speak to the driver to make sure he wasn't hurt and if he needed any assistance. Luckily the driver was uninjured, but he seemed confused as to what had happened. The stretch of road that he lost control on was a straight section of road. It was raining at the time so this must have contributed to the accident, but the driver said that he had a black box fitted (for cheaper insurance purposes) so he wasn't speeding and that he had no idea why he lost control of the car. As the driver looks down the ditch to see any damage, he notices that one of the tires had been ripped off the wheel and there was no way he was going to be driving out of the ditch. To make matters worse, he had no breakdown cover and his phone battery had just died. The driver of the dashcam car offered the use of his phone so that he could get the car towed to a garage to be fixed. The reason for the accident remained a mystery.