He was taken in for questioning on Friday, as part of the investigation into the deadly explosion at a filling station in the County Donegal village in October 2022.

A file will be prepared for the Director of Public Prosecutions, a garda statement said

Four men, three women and three children, ranging in age from five to 59, died in the blast

Hugh Harper said he felt ‘a step closer’ to the truth after the meeting with three ministers on Wednesday.

The Co Donegal explosion killed 10 people and was described as ‘one of the darkest days’ in Ireland’s history.

The two men in their 50s were arrested for alleged offences contrary to the Non-Fatal Offences Against the Person Act 1997.