A man has been arrested in the Republic of Ireland after police found three guns suspected to have been used in a shooting at a Dublin hotel last month.

David Byrne was shot dead and two other men were injured when gunmen opened fire at a boxing weigh-in event at the Regency Hotel on 5 February. On Wednesday, three AK 47 rifles were discovered when armed officers stopped a car near Slane in County Meath.

Irish broadcaster RTÉ said the man who was arrested is from County Donegal. It said the guns were now being examined to establish if they were used in the Dublin shooting.

A police (Garda) spokesman confirmed that a 39-year-old man had been detained in County Meath on Wednesday under the Offences Against the State Act. However, he said no further information about the arrested was available for “operational reasons”.