DUBLIN: Three people have been arrested in connection with an investigation into the murder of a policeman and the attempted murder of another in 1975.
The trio were detained in relation to the murder of RUC Constable Robert John McPherson and the attempted murder of a second officer in Dungiven, Co Londonderry, on July 26, 1975.
Two of the men, aged 73 and 72, were arrested by gardai in Co Meath and Co Donegal on Wednesday morning. They were due to appear before extradition courts in Dublin later in the day.