Children have been seen ‘dicing with death’ at what has been dubbed the most dangerous building in Carmarthenshire.

Cwmaman mayor, councillor Kevin Madge said he has received reports from worried Amman Valley residents that children have been seen climbing on the roof of the derelict Workmen’s hall in Garnant.

It is believed they are copying the current craze where daredevils are filming themselves at great heights.

Cllr Madge said: “This is causing me great concern.

“Children have been seen dicing with death hanging from the back of the hall and climbing on the roof.

“I am calling on these people to stop now before someone is seriously hurt. The building is a death trap.”

The hall, on Cwmaman Road was once a popular meeting place but has been left derelict for a number of years, and in 2009 police discovered a £1 million cannabis factory on the site.

Residents have long complained about the risk from the property.

Last year a planning application was submitted to Carmarthenshire county council to turn the building into a state-of-the-art care facility. It is yet to go before county planners.

Dyfed-Powys police is now calling on children to steer clear of the building.

PC Steve Morris said: “Children have been getting into the back of the hall and we are aware young people have been in the hall itself.

“We are encouraging people to stay away from the site, which is a massive health and safety risk. There are holes in the floors and with no lighting it makes them hard to see.

“We are working with partner agencies to secure the site and have been in contact with the county council asking the owners to make the site safe.

“I would urge parents to speak to their children and explain just how dangerous the site is.

“If we find children at the site causing anti-social behaviour we will be writing to their parents or guardian to inform them.”