A man in his early 30s has been found dead in Co Cavan.
Gardai said they were investigating the circumstances surrounding the discovery of a body at Lodge View, Cootehill, during the early hours of this morning.
A man aged 29 has been arrested in connection with the investigation.
A police spokesman said the suspect had been detained at Bailieboro garda station under the provisions of Section 4 of the Criminal Justice Act.
The State pathologist has been notified and a post-mortem examination will be carried out later.
The body, which was found just after 1am, remains at the scene, which has been sealed to allow specialist Garda officers to scour the area for clues.
Anyone with information is asked to contact detectives at Bailieboro.