An investigation is underway after a man in his twenties was found dead last night at a home in Swinford, Ko Mayo.

Emergency services were called just before 11pm to a property in Karabeg, a short distance from the city’s main street.

Several guards were on a traffic patrol at the time and arrived at the property within seconds.

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When they got there, they found someone who had been injured in the attack.

He was pronounced dead at the scene.

His name is Michael MacDonald from Nok in Ko Mayo.

The body was taken to Mayo University Hospital. There, the post-mortem examination was carried out by Deputy State Pathologist Dr. Conducted by Kathleen Han Suin.

A 30-year-old man was arrested at the scene last night and is being questioned at the Castlebar Guard Station.

Detectives are working to determine the exact chain of events that led to the suspected attack.

It is thought that there may have been disagreements at some point between 8pm and 11pm and that there were inquiry centers within that time frame.

Garda conducts house-to-house investigations and collects CCTV footage from the area.

Anyone with information or witnessing unusual activity in Swinford between 8pm and 11.15pm yesterday is requested to contact the Clare Morris Garda Station on 094-9372080 or the Gorda Intelligence Line at 1800 666 111.