According to the NZ Police site:

“At approximately 12.45 pm Police and Fire emergency services attended an explosion in a garage at an address in Upper Hutt.”

We retweeted earlier about this incident in Te Marua courtesy @esquirescoffee

“A 20 year old male, an 18 year old female and a young baby were present in the garage at the time.

The 20 year old male is in a critical condition in Middlemore Hospital suffering extensive burns to his body.

The female and young baby escaped with minor burns and are to remain in Hutt Hospital over night.

It appears that the explosion was the result of a welding accident.

Fire Service and Police are still investigating”

No further details will be released until Sunday