A commercial diver has died while undertaking maintenance work at a salmon production site operated by a Chilean salmon farmer in the southern Magallanes region, Diario Financeiro reported.

Kateryn Perez Moraga, 30, was working for subcontract firm Austral Service, which was conducting the cleaning work for Nova Austral.

The cause of death is as yet unknown.

Two other divers were taken to hospital suffering from decompression, the report said.

Nova Austral temporarily halted production at the site.

"As a salmon trade union, we deeply regret the death of a worker who carried out his work in a farming center located in the Magallanes Region," industry association SalmonChile said in a statement on its website.

"We empathize and sympathize with the pain of the affected family, as well as with her co-workers."

Last year the Chile Salmon Council trade body published new guidelines aimed at protecting divers working at salmon farms owned by member companies AquaChile, Cermaq, Mowi and Salmones Aysen.

It follows a spate of fatal accidents at salmon farms in Chile since the beginning of 2020.

IntraFish reached out to Nova Austral for comment, but did not hear back prior to publication of this story.