The Black Caps have abandoned their tour of Pakistan.
In Pakistan for the first time in 18 years, the New Zealand team were set to play the hosts in the first of three ODIs in Rawalpindi on Friday night.
However, following an escalation in the New Zealand Government threat levels for Pakistan, and advice from NZ Cricket security advisors on the ground, it had been decided the Black Caps would not continue with the tour.
Arrangements were being made for the team's departure.
NZC chief executive David White said it was simply not possible to continue with the tour given the advice he was receiving.
"I understand this will be a blow for the PCB, who have been wonderful hosts, but player safety is paramount and we believe this is the only responsible option."
New Zealand Cricket Players Association chief executive Heath Mills echoed Mr White's sentiments.
"We've been across this process throughout and are fully supportive of the decision," he said.
"The players are in good hands; they're safe - and everyone's acting in their best interests."
NZC wasn't commenting on the details of the security threat or the updated arrangements for the departing squad.
In a statement, the Pakistan Cricket Board said they had been informed by NZC earlier on Friday of the security alert.
The PCB said NZC had "unilaterally decided to postpone the series".
"Pakistan Cricket Board and Pakistan Government made foolproof security arrangements for all visiting teams. We have assured the New Zealand Cricket of the same.
"The Pakistan Prime Minister spoke personally to the Prime Minister of New Zealand and informed her that we have one of the best intelligence systems in the world and that no security threat of any kind exists for the visiting team.
"The security officials with the New Zealand team have been satisfied with security arrangements made by the Pakistan Government throughout their stay here.
"PCB is willing to continue the scheduled matches. However, cricket lovers in Pakistan and around the world will be disappointed by this last minute withdrawal."