New Zealand adopts main island names

New Zealand has formally adopted names in English and Maori for its two main islands

In English, they will be known as the North Island and the South Island - names already in use but which had not been officially designated

In Maori, they will be called Te Ika-a-Maui and Te Waipounamu, which mean ''the fish of Maui'' and ''the waters of greenstone'' respectively

 The move was recommended in August by the New Zealand Geographic Board, after a process of consultation