A man has been arrested in connection with the unexplained death of a man in his 70s whose body was found at a house in Lisdoonvarna, Co Clare earlier today.

The deceased was John O'Neill, 78, who had lived in the town all his life and ran a Bed & Breakfast with his late wife, who only died last year.

The arrested man, aged in his 30s, is being held in Ennis Garda station under Section 4 of the Criminal Justice Act and can be held for 24 hours for questioning.

Gardaí had concerns about the discovery of the body and a full criminal investigation was launched.

A technical team of gardaí has examined the scene and the road and immediate area around it.

State pathologist Dr Margot Bolster has examined the interior of the house and Mr O'Neill's body has been taken to University Hospital Limerick for a post-mortem examination.

This should give gardaí more details about how the man died and will determine how their investigation into his unexplained death will proceed.

It is understood at this early stage that the deceased may have been the victim of an assault.

Mr O'Neill's death has shocked neighbours and local people.

His neighbour Heather Crowe, who operates the nearby Ritz hotel, said people were very upset on hearing the tragic news.

"He was a lovely man and neighbour and I saw him only two days ago," she said.