Incident happened as one of the Royal Australian Navy’s largest ships was on its way to Wellington this weekAustralia news live: latest politics updatesGet our breaking news email, free app or daily news podcastThe 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.Sign up for Guardian Australia’s breaking news email