The Ross Sea should be closed off to fishing vessels after three serious boating disasters in just over a year, the Green Party says.
The party has joined calls from environmental group The Last Ocean to have most of the 960,000 square kilometres of sea near Antarctica transformed into a marine-protected area in the wake of the latest boating accident.
A Korean fishing vessel, the Jeong Woo 2, issued a mayday call from its position in the sea 3,700km southeast of New Zealand early on Wednesday after a fire ripped through its accommodation block.
Three sailors are missing presumed dead while another seven suffered moderate to severe burns in the disaster.
It comes just a month after the Russian fishing vessel Sparta, which carries 32 crew, hit ice in a similar position in the Ross Sea in mid December, rupturing the hull.
A year earlier, the Korean fishing boat No.1 Insung sunk in the same area, with a loss of 22 lives.
Green Party oceans spokesman Gareth Hughes said it was time to block the "dangerous and hostile piece of ocean" off to tooth fishers.
"This is clearly an extremely hostile environment that is being used by very old, single-hulled unsuitable fishing boats," Mr Hughes told NZ Newswire.
"The best thing we could do is close it off, make it marine-protected and stop the risk of these terrible accidents as well as protecting a precious bit of ocean."
A group of 500 international marine scientists have been campaigning for the move, but Mr Hughes said leaked documents indicate it will be vetoed by the New Zealand and US governments.
"That's disappointing," Mr Hughes said.
"Let's hope this latest accident will serve as a wake-up call to the government that we need to act."
NZN