Prime Minister Malcolm Turnbull has addressed the Saudi Arabian football team's refusal to honour a minute's silence for the two Australian victims of the London terror attack, saying "everyone" should be united in condemnation of terrorism.

"The whole world, the whole free world is united in condemnation of that terrorist attack and terrorism generally and in sympathy and love for the victims and their families," Mr Turnbull said, adding he has not yet watched video of the minute's silence.

"The heartbreaking loss of young Australians in London, of course in Baghdad and just this week in Melbourne to these murderous terrorists. Everybody, everyone should be united in condemnation of the terrorists and love and sympathy and respect for the victims and their families," he ended.

Earlier, the Socceroos addressed the incident saying they had "no control" over the Saudi Arabian football team's actions."