POLICE investigating a theme park crash which injured 10 people have appealed for help from the public.

A dedicated email address has been set up -rollercoaster@scotland.pnn.police.uk - for images or video footage to be sent.

Officers are appealing to anyone who was in the park during the time of the incident on Sunday to get in touch.

Four people remain in hospital as the investigation into the cause of a theme park rollercoaster crash continues.

Two boys, aged 11 and 12, are still said to be in a serious condition with chest, leg and arm injuries at the Royal Hospital for Children in Glasgow after the Tsunami ride derailed and hit the ground at M&D’s amusement park near Motherwell, North Lanarkshire, on Sunday afternoon.

Two others are in a stable condition in Glasgow hospitals.

In total, ten people were treated at hospitals in Glasgow and Lanarkshire after the crash but most have now been discharged.

The theme park remains closed, with police, engineers and the Health and Safety Executive (HSE) inspecting the ride and the five gondolas that fell 20ft to the ground from the rollercoaster.

M&D’s said the Tsunami ride had been closed on Saturday due to a “minor electrical fault’’ but was ‘’fully operational’’ when the park opened on Sunday.

Director Douglas Taylor said his thoughts were with those injured and that he was “devastated” at the first such accident in 50 years in business.

The crashed carriages narrowly missed people on the ground below the Tsunami.

Amy Thomas said debris from the crash narrowly missed hitting her three-year-old son Dylan, who was playing on a toddlers’ ride below the rollercoaster.

She told BBC Scotland: “The rollercoaster above went to turn a corner but it didn’t quite make it, bits started cracking off and then it just fell.

“The front carriage broke off and pieces were bouncing to the ground.

“Luckily there was a fence surrounding the toddlers’ ride which bore the brunt of the falling debris, but pieces of it landed two feet from him.”

Police, firefighters and paramedics rushed to the scene as several visitors posted images on social media appearing to show a mangled carriage on a pathway surrounded by dozens of people.

According to the M&D’s website, the Tsunami can go at speeds of up to 40mph through corkscrew turns and loops.

It is not the first time the park has had problems with its rides, including Tsunami. In July 2011, nine passengers, including children, were stranded for more than eight hours when it came to a halt 60ft above the ground.