A teenage girl who died alongside her boyfriend at a holiday park is believed to have succumbed to suspected carbon monoxide poisoning, an inquest has heard. Cherish Bean, 15, and Ethan Slater, 17, were found dead inside a cabin at Little Eden Holiday Park in Bridlington last month.

An opening hearing was told the couple had been enjoying a family holiday and were both described as "fit and well" when relatives spent the evening together on February 17 before the tragedy unfolded. Senior coroner Professor Paul Marks told the hearing that Cherish left her family at around 9pm to go to a smaller cabin, known as the "Mancave", where she stayed with Ethan to watch television. The hearing at Hull Coroner's Court was told Cherish returned to the main cabin around an hour later complaining of a headache. She took some Calpol because the family had no paracetamol available.

Professor Marks said Cherish later returned to the smaller lodge and texted her mum shortly after 10pm to say goodnight and that she loved her. He added that Ethan went back to the cabin at around the same time.

Detective Chief Inspector Ben Robinson, of Humberside Police, told the hearing that four people "associated with the management and maintenance" of the holiday park had been arrested on suspicion of gross negligence manslaughter.

He said they had since been interviewed and released on bail.

When asked by Professor Marks whether there was reason to believe the couple's deaths were linked to carbon monoxide poisoning, Mr Robinson said there was.

He told the hearing the official medical cause of death remains pending the results of a forensic pathologist's examination.

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Mr Robinson said the boiler from the cabin had been recovered and examined as part of a forensic evaluation, supported by specialist gas engineers.

He added that both the Health and Safety Executive and the National Crime Agency had been consulted during the investigation.

Professor Marks adjourned the inquest until the conclusion of the police investigation. He said: "I would like... once again, to extend my condolences to both the families of these young people."