The Minister in charge of the GCSB in 2021- when a cyber incident targeted Parliamentary entities - has revealed more about what followed.

The spy agency revealed today it became aware the intrusion, linked to a Chinese state-backed actor.

China's ambassador to New Zealand Wang Xiaolong has called the accusations groundless and irresponsible.

Andrew Little says he was told there had been a hack, but lengthy investigation was needed.

"Making an announcement, a co-ordinated announcement of this nature, on this particular hack has been talked about for some months. But obviously, all the things lined up for that to happen in the last 24 hours."

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