No further details from the Prime Minister about a terror threat that activated our top security systems.

The activation was revealed last week - but there are no details of how the plot was foiled or when it happened.

It's only become known through a newly released national security handbook.

John Key, who's also the Minister for Security and Intelligence, told Mike Hosking he can't go into the matter.

He's also not too happy it became public.

"It puts me in a position where I can't comment on it so in that regard I suppose so, but again there's probably a back-story to that so I'll just leave it there."

LISTEN TO MIKE HOSKING'S FULL INTERVIEW WITH JOHN KEY ABOVE

As well as discussing terrorism, Key also talked about Labour's recently announced policies aimed at getting young people into work, the Auditor-General's report into the Saudi sheep scandal, and whether he is concerned about Gareth Morgan's new political party.