US win women's 4x400m relay
AAP
The United States have won the women's 4x400m relay at the Rio Olympics.
The US clocked a winning time of three minutes 19.06 seconds as they finished ahead of Jamaica and Britain.
The Australian team of Jessica Thornton, Anneliese Rubie, Caitlin Sargent-Jones and Morgan Mitchell were last in 3:27.45.
