Wellington: There were multiple fatalities in a boating accident in New Zealand on Saturday, police said, but they were unable to immediately confirm the death toll.

“A number of people have died after a boat got into difficulty in Kaipara Harbour this afternoon,” police said in a statement.

“At least six other people have been rescued and are receiving medical treatment.”

Local media said 11 people were believed to be in the water after a chartered fishing boat overturned near a bar at the entrance to the harbour north of Auckland city.

The vessel, called The Francie, is listed as a 12-metre (40-foot) long boat that can carry a maximum of 22 people.

Police said four aircraft and the coastguard were searching for people in the water.