A Pembrokeshire theme park is to be prosecuted following the death of a teenager three years ago. Hayley Williams, 16, from Pontypool, died at Oakwood in 2004 after falling from the Hydro Ride. The Health and Safety Executive (HSE) has confirmed that a decision has been made regarding the involvement of Oakwood Leisure Ltd in the incident. In a statement, a spokesman for the Health and Safety Executive, said: "The HSE has met with Oakwood Leisure Ltd and informed them that it is the intention of HSE to prosecute them under the Health and Safety at Work Act 1974. The family of Hayley Williams have also been informed of this decision. "Due to legal processes linked with the ongoing investigation into other aspects of this matter, HSE is unable to indicate when formal charges will be laid and the summons will be served, or when the matter will be brought to court, and there can be no further comment on this matter from HSE at this time." A statement by Oakwood said: "We have been given notification by the Health and Safety Executive that they intend to prosecute Oakwood under Section Three of the Health and Safety at Work Act 1974 following the death of Hayley Williams at the park in 2004. "We will continue to co-operate fully. However, since their investigation is still ongoing, we cannot comment further on this matter at this time."