Alton Towers closed today as investigation continues
Alton Towers remains closed today while investigations continue into the worst accident in the park's 35 year history.
Four people have been seriously hurt in a crash between two carriages on a rollercoaster ride at Alton Towers.
Sixteen people were in one carriage of the Smiler ride; the other was empty, when the crash happened yesterday afternoon.
West Midlands Ambulance Service said the four, two girls and two boys, were trapped on the ride, about 25 feet (7.6m) above the ground.
Alton Towers tweeted all guests involved had been evacuated. A director described it as "the most serious incident" in the park's history.