Wellington: A moderate volcanic eruption began at White Island, New Zealand on Monday, about 50km from the east coast of North Island, authorities said.

It is hazardous in the immediate vicinity, the National Emergency Management Agency said in an email statement and on its Twitter page.

Local media reports said there were people on or near the volcano at the time of the eruption, but this was not confirtmed by authorities.

The agency said falling ash may affect some areas.