On the night of the 27 August 1979 two roadside bombs planted by the IRA at Warrenpoint killed eighteen British soldiers.
The ambush happened at Narrow Water near Warrenpoint in County Down. Six soldiers were killed in the first explosion when a bomb in a lorry was detonated by remote control as the soldiers drove past in a four tonne military vehicle travelling towards Newry. In addition, five soldiers were injured, two of them seriously.
The second explosion took place around twenty minutes later. A bomb had been hidden in a gate lodge opposite Narrow Water Castle. The solid granite structure was completely destroyed in the blast which killed twelve soldiers, some of whom had been sent in as reinforcements following the first explosion.
Twelve soldiers died in this blast and some of the bodies were thrown into Carlingford Lough.
The dead included Lieutenant Colonel David Blair, commanding officer of the Queen's own regiment and the highest ranking officer to be killed during The Troubles.
About a hundred RUC men have been picking up the pieces after the carnage of the previous night.
Last night's death toll was the worst suffered by the British army in any single incident in the ten years they've been here. The eighteen deaths make yesterday the worst single day of violence in the north since the present wave of troubles began.
To add to this, a twenty seven year old English man was found shot dead across the border in the Republic.
An RTÉ News report broadcast on 28 August 1979. The reporter is Michael Good.