A highly decorated Australian soldier, Victoria Cross recipient Ben Roberts-Smith, was arrested in connection with alleged murders of unarmed prisoners during his service in Afghanistan.

One of Australia’s most-decorated soldiers was arrested on Tuesday for allegedly murdering unarmed prisoners while serving in Afghanistan, police and local media said following a sweeping war crimes investigation. The Australian Federal Police said they arrested a 47-year-old former Australian soldier, who was widely named in local media as Victoria Cross recipient Ben Roberts-Smith. Federal police commissioner Krissy Barrett said the soldier had been linked to a string of murders while serving....