Prime Minister Malcolm Turnbull has said that two Australians have been "directly affected" but the attacks in London, with one in hospital and ongoing inquiries made regarding the other.
Both families have been notified.
"This attack is yet another cruel example of the new reality in which we live, the ever-present threat of murderous Islamist terrorists, intent to harm our communities, our way of life and the freedoms we hold dear," Mr Turnbull told a press conference. He didn't mince his words.
"We will never, ever bow to terrorism. We will continue, as will the people of Britain, to lead our lives the way we always have. We defy the terrorists. In the field, we find them, we destroy them, we kill them. At home our agencies disrupt their plots, uncover their networks, bring them to meet their just desserts in the courts and lock them up where they can no longer do us harm."
Six are dead and and over 45 injured after a van was driven into civilians on London Bridge, with three terrorists then stabbing people in Borough Market.
More to follow.