An explosion at the RTÉ television studios is believed to have been caused by a time bomb.
This RTÉ News radio gives details of the damage to the television studios at Donnybrook in Dublin..
The explosion occurred at exactly 1.30 am and could be heard over a wide area of Dublin city.
It is believed that the explosion may have been caused by a time bomb placed at the rear wall of the studio building. There was no structural damage to the building but there was damage to the large structural plate glass panels which are a feature of the building. No staff were injured by the explosion.
At this stage Gardaí are investigating what happened but so far there have been no arrests.
An RTÉ News report broadcast 5 August 1969. The reporter is Tom McCaughren.
It was later discovered that the bomb had been planted by the Ulster Volunteer Force (UVF).