“Dunedin Airport is open. Please check our website for flight information”, the airport wrote on Twitter.
Earlier in the day, local media reported that Dunedin Airport was cordoned off, with an explosive ordinance team having arrived at the site to check the package. The latter turned out to be a hoax object.
The alert at the airport comes two days after the country was rocked by the violent shooting in two mosques in eastern city of Christchurch, which left 50 people killed and dozens injured.
New Zealand's Prime Minister Jacinda Ardern called the shooting a terrorist act, saying it was the country's "darkest day".
Facebook, however, has removed as many as 1.5 million video clips depicting the shooting over the first 24 hours, with the social media giant preventing most of the videos from being posted in the first place. Facebook has also said that the social network was also deleting those versions of the video that had been edited and did not contain graphic scenes.
On Saturday, a court in New Zealand ruled to remand Tarrant in custody until 5 April, while the police said they expected further charges to be brought against him.