Another diving team tried to help recover the body

His buddy was unable to rescue to him as were a group of divers who were using the quarry for an unrelated event by a London-based stuntman.

The man's body has been located and a sub-aqua team is hoping to recover it shortly.

It is the second tragedy at the 300ft-deep quarry in 48 hours after a 52-year-old man died on Sunday.

"Own risk"

According to the local authority and North Wales Police, anyone who dives at Dorothea does so at their own risk.

We just can't allow this catalogue of deaths to continue

Caernarfon MP Hywel Williams

The quarry, which is over 100m deep and has temperatures close to freezing, is one of the most dangerous inland diving locations in the country.

Despite warnings from both police and the local authority not to dive there, the pool is a popular destination for sub-aqua enthusiasts.

On Sunday, 52-year-old Mick Gott, a father-of-two from Derbyshire, was airlifted to a decompression chamber unit on the Wirral after he got into difficulties while ascending from a three-man dive.

He died later in hospital.

Fifth tragedy

A BBC cameraman was at the scene of Tuesday's emergency.

He was filming the party of stuntman Steve Truglia who was at the quarry in an attempt to set a British free-diving record.

Les Jones, Gwynedd county council

Mr Truglia, whose record attempt has now been called off, and his safety divers tried to save the stranded man.

The death is the fourth in four months at the site.

Gwynedd county councillor Les Jones, who has seen the facilities at the National Diving Centre in Stoney Cove in the Midlands, believes diving should be stopped at the site until appropriate facilities are installed.

"At Stoney Cove they have a decompression chamber and first aid facilities, but we have nothing at all here.

"I am asking that this type of activities are barred until proper facilities are on site."

Caernarfon MP Hywel Williams supported the Mr Jones, saying that "urgent regulations are needed."

"We just can't allow this catalogue of deaths to continue," he added.

Sometimes regulations are necessary to protect people from endangering their own lives in such a terrible fashion."

Mr Williams is now seeking to arrange a meeting with Sport Minister Richard Caborn to discuss the dangers involved.