"The American aggression proves that the USA is not interested in objectivity of the ongoing investigation, seeks to wreck peaceful settlement in Syria and destabilize environment in the Middle East, and all these have nothing to do with declared objectives of countering international terrorism."
The US, UK and France launched missile strikes against Syrian targets in retaliation for what the Western nations said was the deliberate gassing of Syrian civilians.
Following the air strikes, Prime Minister Jacinda Ardern said New Zealand accepted why they launched the strikes.
The New Zealand Government favoured diplomatic efforts and a multilateral approach through the UN but Russia's veto had prevented that.
But now was the time to return to the table at the UN, Ardern said.
Opposition leader Simon Bridges said New Zealand's response should have been stronger.
Rather than "accept" the air strikes, New Zealand should have followed the lead of Australia and Canada and supported them, he said.