A floating boom was put in place around the Dong Won 701 to contain any possible spillage from the vessel.

It is hoped a fire burning on a Korean fishing vessel docked at the Port of Timaru has finally burnt out after almost a week, but crews won't know for sure until they re-enter the boat tomorrow.

Fire and Emergency New Zealand (Fenz) South Island assistant area commander Rodger Smith said crews had been working through the weekend closely monitoring the temperature of the ship as they tried to finally bring the fires under control.

"We're continuing to apply water jets to the outside parts of the vessel.

JOHN BISSET/STUFF Fire crews will re-enter the Dong Won 701 on Monday to check if the fires have burnt out.

"Logistically these sorts of fires are always challenging but we've got firefighters from Dunedin, Invercargill, Wellington, as well as locals to assist," Smith said.

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The 70-metre Dong Won 701 Korean fishing vessel caught fire about 9.30pm on Monday.

Since then emergency services crews and authorities have been working to bring the fire under control and minimise its impact on the harbour and operations at the port.

Smith said the plan now was for fire crews to re-enter the boat, which was sealed on Friday in an effort to contain the fires, on Monday.

"We can't guarantee that all the fires are out but we're pretty confident that they are," he said.

Smith said once the fire was out, Fenz would cease its involvement with the vessel.​​

The incident is being investigated by the Transport Accident Investigation Commission.
Fire and Emergency New Zealand announce they hope the fire aboard Korean ship FV Dong Won 701 is extinguished seven days after catching light in the Port of Timaru, New Zealand. Firefighters say they plan to board the vessel tomorrow to confirm.