(CNN) New Zealand Prime Minister Jacinda Ardern, who gave birth while in office, has made history by bringing her three-month-old daughter into the United Nations assembly hall.

Ardern, 38, was photographed kissing and coddling Neve in the assembly hall next to partner Clarke Gayford at the Nelson Mandela Peace Summit.

Neve looked on as her mother addressed the assembly while Gayford, whom the couple say is the main caregiver for their daughter, held the baby.

Gayford, a television fishing show host, tweeted: "I wish I could have captured the startled look on a Japanese delegation inside UN yesterday who walked into a meeting room in the middle of a nappy change. Great yarn for her 21st," he wrote.

He posted a picture of the baby's mocked-up UN diplomatic photo ID that described her as "New Zealand first baby."

Because everyone on twitter's been asking to see Neve's UN id, staff here whipped one up.

I wish I could have captured the startled look on a Japanese delegation inside UN yesterday who walked into a meeting room in the middle of a nappy change.

Great yarn for her 21st. pic.twitter.com/838BI96VYX — Clarke Gayford (@NZClarke) September 24, 2018

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