Searchers are unsure of the source of two plastic containers, found today in the hunt for the missing yacht Nina.
A Kiwi Air plane based on Norfolk Island spent all of today searching an area to the west of the island.
"Two 20-litre plastic containers have been located in the search area but its not confirmed that they are from the Nina,'' search spokesman John Funnell said.
"They could be from the Nina or they could just as easily be from something else.''
Hope for the missing 85-year-old vessel, whose crew were last heard from on June 4, was renewed when recent satellite images captured an orange object, possibly a liferaft, similar to the one the Nina carried.