TVNZ Breakfast's Hayley Holt accidentally drops the F-bomb during LIVE broadcast

WARNING: Video contains explicit language.

Yesterday TVNZ Breakfast's Hayley Holt got the surprise of her life when she accidentally swore live on air.

The TV host made the blunder when she was attempting to answer a question about how the size of a wave is measured.

Holt was visibly shocked with her slip up, quickly covering her mouth and grabbing co-host John Campbell for support.

The moment passed without a hitch – that was until executive producer Jonathan Williams wandered on set.

Newsreader Jenny-May Coffin reassured Holt, telling her "you're human. It's okay."

Last month Holt opened up about her sobriety journey, and said the decision to give up alcohol was 'the best decision ever'.

Breakfast is on TVNZ1 weekdays from 6am-9am.

Take your Radio, Podcasts and Music with you