Incident happened as one of the Royal Australian Navy’s largest ships was on its way to Wellington this week

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The Australian defence force (ADF) has conceded that one of its ships inadvertently blocked wireless internet and radio services across swathes of New Zealand’s North and South islands this week.

The incident occurred on Wednesday morning as HMAS Canberra, one of the largest ships in the Royal Australian Navy, was on its way to Wellington, where it ultimately arrived on Thursday.

As HMAS Canberra was passing along New Zealand’s coast on its approach to Wellington, its navigation radar interfered with wireless and radio signals over a large area spanning Taranaki in the North Island to the Marlborough region in the South Island.