Crowds gathered at the Auckland War Memorial Museum for a dawn service were unaware police had received a threat a bomb would be planted at the cenotaph.
Inspector Ian Brooker said the threat had been received in the early hours of the morning before the crowds arrived on the grounds of the Domain. He would not say how the threat had been made.
"We're treating this as a non-specific hoax as obviously no bomb went off," said Mr Brooker.
Inspector Cornell Kluessien said the area had been searched.
"The cenotaph and the area around it was searched and guarded for a while until police arrived for the event," he said.