The driver of the bus, which fell into an abyss killing three people while fifty others were hospitalized, was arrested in Poland, RMF24 reported.
The driver will be charged soon, and his precautionary measure is being decided on too.
Experts have determined that the driver was speeding when the accident had occurred.
Eighteen of the hospitalized are injured, and nine of them are in critical condition.
The bus was taking Ukrainian tourists on a trip to Vienna.