Three people have died following a serious incident in County Louth. A man has been arrested following the incident in Tallanstown this morning. Gardaí responded to the serious incident at a home in Tallanstown this morning, where three people, two men and one woman, were found dead at the scene. AdvertisementA man in his 30s has been arrested and is being detained at a Garda station in the North West. The scene is preserved for a technical examination and the offices of the Coroner and State Pathologist have been notified.