One person has been rushed to hospital after a "serious" emergency on a theme park rollercoaster.
Visitors have been asked to evacuate the Oakwood Theme Park in Pembrokeshire, south west Wales, after a medical emergency.
The Welsh Ambulance Service were called to the scene at 1pm, with an air ambulance also arriving at the park.
It has been reported that the incident involved the Treetops ride, but this has not yet been confirmed.
Park officials have confirmed the site has been shut for the day while the Health and Safety Executive (HSE) says it is investigating the incident.
The Treetops ride is a rollercoaster that travels through the woodlands that surround the park, WalesOnline reports.
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It is described as being "high up in the treetops" before twisting, bending and dropping through the tree canopy.
It is one of the site’s "most popular rollercoasters" and has been a feature of the park for nearly 30 years.
It has a top speed of around 22mph and stands just over 26ft high.
The air ambulance was seen leaving the park shortly before 4pm and headed in the direction of Swansea.
In a statement, Oakwood Theme Park said: “As a result of an incident at Oakwood today we have closed the park to the public with immediate effect."
Dyfed Powys Police has said that the HSE is leading the investigation.
A spokeswoman for the HSE said they had been made "aware" of an incident at the theme park.
It has been confirmed that one person has been taken to hospital and details surrounding what had happened are being looked at by officials.
