A passenger has died on a flight from China that landed at Auckland International Airport on Monday afternoon.

The person was on board China Southern flight CZ305 from Guangzhou.

"Unfortunately the passenger had passed away before arrival to Auckland Airport," an airport spokesperson said.

Police and health officials responded to the airport about 4.30pm, a police spokesperson said.

"The death is believed to have been due to a medical event."

The spokesperson said the death was not believed to have been related to coronavirus.

Flight CZ305 was one of three that arrived at Auckland Airport from mainland China on Monday afternoon and evening.

The other two flights were from Beijing and Shanghai.

On Sunday, Deputy Prime Minister Winston Peters announced that anyone who was not a New Zealand citizen or permanent resident arriving on flights originating or transiting through mainland China would be refused entry in New Zealand.

However, non-New Zealand passengers arriving on flights from China that were already en route on Monday would be allowed entry following "enhanced screening", he said, before the ban would take full effect.

Auckland Airport's website showed a flight from Shanghai and one from Guangzhou were due to land on Wednesday afternoon.

However, a flight from Guangzhou, which was scheduled to land early on Thursday morning, had been cancelled.

The travel advice to New Zealanders for all of mainland China had been raised to "do not travel" by the Ministry of Foreign Affairs and Trade. This was the highest level possible.

Novel coronavirus, which is believed to have originated from a live animal market in Wuhan, China, has infected nearly 15,000 people in China and killed about 300 people.

Kiwis returning from China have been told to self-isolate for two weeks to cover the incubation period of the virus which has so far killed about 360 people, all but 12 in the Hubei region in China.

The first death outside China occurred in the Philippines.