Alton Towers has commented after its ride The Smiler froze, loeaving 32 people trapped in mid air today.
They told The Sun Online: "Alton Towers Resort stopped The Smiler to investigate claims a piece of debris that had fallen from a carriage".
Five people were seriously injured in the incident and an investigation found that a computer block stopping the ride because of a stationary vehicle on the track had been over-ridden by staff, causing the crash.
Some 16 people were on board one of its carriages when it collided in June previous year with a stationary carriage at 52mph, causing severe injuries to riders.
Chelsea keen to re-sign David Luiz from Paris Saint-Germain
The 29-year-old returns to Stamford Bridge just two years after leaving Chelsea, who opened talks with their ex-player on Tuesday. Chelsea were expected to confirm the signing of Marcos Alonso and also sign Marcelo Brozovi from Inter Milan.
Guests were removed and the ride was closed for the fault to be investigated, an Alton Towers spokesperson said.
Merlin Attractions Operations Ltd admitted a breach of health and safety rules over the incident.
Pictures from the scene show a carriage on its way up a vertical section of the ride's track, with people in their seats facing up.
Eyewitness Liam Dennett was with his family from Cheltenham who were queuing for the Smiler ride when "everything just stopped".
Allyson Felix is gold again in women's 4x400 relay
MORE AMERICAN HARDWARE: Defending men's 10-meter platform diving champion David Boudia of the United States took the bronze . But fatigue caught up with her and Cheruiyot and compatriot Hellen Obiri, who won silver , saw their chance.
He posted videos on Facebook showing people stuck on the rollercoaster.
As a result, the full carriage ploughed into the back of the empty vehicle, leaving Leah Washington, 18, and Vicky Balch, 21, needing leg amputations.
Alton Towers theme park in Staffordshire has commented on today's incident.
An Alton Towers spokesman said in March: 'We have sought to learn every possible lesson to help ensure there is no repeat of what happened.
Turkey Accused Of Killing 'Tens Of Civilians' In Syrian Village
The group blamed Russian and Syrian joint military operations room for the use of such weapons in violation of global law. Turkey has sent tanks across the Syrian border following weeks of deadly attacks by the PKK and the Islamic State group.
It is not known how long they were stranded in the air, though some people on Twitter estimate it could have been up to 30 minutes.