Malcolm Turnbull still wants an investigation into a deadly chemical weapons attack in Syria but is convinced it was undertaken by the Assad regime.
The prime minister said it was clear from the evidence Assad was behind the chemical attack.
"I'm not going to go into intelligence I've seen or not seen. I can say to you, however, as the US has made public and has been widely acknowledged, this was an attack undertaken by the Assad regime," he told Sky News from India on Wednesday.
"The American response was appropriate. It was just and it was swift."
Mr Turnbull strongly supports the US missile strikes on the Syrian air base where the gas attack was launched from, saying it sent a clear message to the Assad regime that such chemical attacks would not be tolerated.
"I'm sure there will be an investigation and there should be because obviously it's important to know who the individuals were involved," he said.
"The more we can find out about it the better because individual actors need to be held to account, but it is clear the attack was conducted by the Assad regime."
