Two large blazes burning in Hawke's Bay and Nelson

Three helicopters fought the blaze in Cromwell - flames and smoke could be seen from the Cromwell lookout on State Highway 8. Photo / Gabby Palmer

Firefighters are battling two large fires tonight in separate parts of the country.

A huge fire is burning in Porangahau, Hawke's Bay.

Fire and Emergency (FENZ) shift manager Murray Dunbar said the fire is in a rural area stretching over 20ha, where pine trees have been felled.

"It's quite a large fire, but I can't give you a specific area inside that 20ha," he said.

FENZ has decided to let the blaze burn overnight and will monitor the fire, before reassesing in the morning.

There is no danger of the fire spreading to other forestry blocks and no plans to evacuate at the moment, he said.

"It's a well-contained fire, it's not going anywhere," Dunbar said.

Fire and Emergency was alerted to this evening's blaze at 8.40pm and has requested helicopter assistance, but could not confirm if it has yet arrived.

There are no plans to evacuate the area at the moment.

Elsewhere, crews are battling another big blaze in Masonic Hall on Nile St, in Nelson.

Fire and Emergency shift manager Andrew Norris said six trucks are at the scene.

"The fire is under control, but it's by no means out."

Firefighters were alerted to the blaze at 9.50pm and do not believe anyone was inside the building.

Norris said there are no plans to evacuate the surrounding area because the hall is surrounded by a large carpark.

There is no danger of it spreading, he said.

"The building is described as well involved and multiple crews are working to get this under control," Fire and Emergency said on Facebook.

Locals are asked to avoid the area while crews work to control the flames.

Fire and Emergency NZ crews are in attendance at a 3rd alarm building fire on Nile Street, Nelson The building is...

Posted by Fire and Emergency NZ Communication Centres on Monday, 4 November 2019

It's the third major fire around the country today, following a large blaze near Cromwell .

Three helicopters used monsoon buckets to fight the vegetation fire at Cornish Point, on the true right of Lake Dunstan, across the lake from the Old Cromwell Heritage Precinct.