The bright white light that illuminated the night sky across New Zealand was spotted from many Northland locations.
Witnesses from the Far North to the upper South Island reported seeing the bright light, with some hearing a sonic boom, around 10pm on Wednesday.
Auckland Stardome astronomy educator David Britten said witness reports were consistent with meteoritic material or space rocks entering the atmosphere.
Chris Jack was sitting on the deck of his Waipu house when the sky went from dark to a flash of white.
"There was a big flash and I thought "Oh my God it's lightning, here comes a storm," but it never eventuated," Mr Jack told the Advocate.