In the ensuing gun battle one undercover British soldier was killed.

They later apologised saying that he was mistaken for an undercover British soldier.

It was reported at the time that "Frank" was an undercover soldier.

The men were ambushed in a graveyard following the attack by undercover British soldiers.

The undercover soldiers were aware of the arms dump after being tipped off by an informer.

When the undercover soldiers checked his identification papers, Israeli news reports say, they discovered that they had gone after the wrong man.

Three minutes after the blast, hundreds of angry residents gathered at the scene and confronted the undercover soldiers.

The presence of undercover soldiers in the very heart of republican Bogside was extremely unusual.

In the examples shown during the officially sanctioned television report, the undercover soldiers posed as Arabs.

They claimed to have shot three undercover soldiers: two men and a woman.