
Australian Prime Minister Malcolm Turnbull lays a floral tribute to mourn for victims of the Bourke Street attack in central Melbourne, Australia, Jan. 22, 2017. (Xinhua/Bai Xue)

Australian Prime Minister Malcolm Turnbull lays a floral tribute to mourn for victims of the Bourke Street attack in central Melbourne, Australia, Jan. 22, 2017. (Xinhua/Bai Xue)