Police converged on Christchurch's Al Noor mosque just after 12.30pm after a suitcase was left at the front door.
A person who spotted the suitcase called 111 and police called a member of the mosque Immediately.
"I ran straight here," said Mohammed Jama, who survived the March 15, 2019, mosque attacks.
He said it was a shock but when he arrived police had opened the suitcase and found it was an innocent delivery.