Investigations are continuing at Alton Towers theme park after 29 people were injured on the Runaway Mine Train ride.
The ride was closed following the accident on Thursday
Two women were taken by air ambulance and four others treated in hospital following a crash on the rollercoaster at the Staffordshire park on Thursday.
The front part of the train, which was full with 46 people on board, became separated from the rest of the ride.
The attraction was closed after the crash while park chiefs and the Health and Safety Executive investigate.
It was unclear when the ride will reopen, Alton Towers said, but the rest of the park remained unaffected.
A spokeswoman for the theme park said: "The health and safety of our guests is our primary objective. The ride has been closed and will remain so whilst a thorough investigation is carried out."
She said it was their policy to check rides at the end of each day and before the park opened each morning.
The rollercoaster ride is one of the older attractions at the theme park.