Anzac Day, nation's reaction to Christchurch terrorist attack 'reminds us of our shared humanity' - Ardern

As thousands throughout the country gather to commemorate Anzac Day, Prime Minister Jacinda Ardern is calling for everyone to remember our shared humanity following the Christchurch terrorist attack.

"Let us recommit to always remembering our shared humanity that there is more that united us than divides us," she said of the attacks in her speech at the Auckland War Memorial Museum dawn service.

Services were held throughout the country, with a Māori karakia ringing out at the Auckland War Memorial Museum to kick off the ceremony.

Ms Ardern spoke about the coming together of people young and old, people of all races, and creeds, to mark the day Australian and New Zealanders landed at Gallipoli on April 25, 1915 - 104 years ago today.

"It [Anzac Day] reminds us of our shared humanity, something we've been reminded of again in the wake of the 15th of March," Ms Ardern said.

"As we come together on this day to remember, to commemorate, to give thanks to others, let us also recommit," she said. "Let us recommit to those simple values of freedom, democracy and peace, just as if we've never taken the loss of life by those who served on our behalf, so too must we never take for granted these principles.

"We will always be a proud nation, one that understands the role we have to play in the international community, one that does not take our sense of security for granted or believes our isolation insulates us from conflict or war," she said.

"Our sense of independence is as strong as our sense of responsibility to each other and not just as nation states but as human beings. That is part of the Anzac legacy."

There are just 26 services in Auckland this year, cut down from about 90 last year, following the Christchurch terrorist attacks placing New Zealand on a "high" threat level. The threat has since been reduced to medium but there is still a strong police presence at services throughout the country.

Prince William is in New Zealand and will meet survivors of the Christchurch terrorist attack.