At least four people have been killed and one injured in a mass shooting in the Australian city of Darwin.<br />The suspect, a 47-year-old man, was taken into custody an hour after Tuesday's shooting.<br />According to the Police Commissioner, the alleged gunman was "well-known to police" as he was on parole following his release from prison in January.<br />Australian Prime Minister Scott Morrison said the shooting was not terror-related.<br />The police are still trying to establish the intent and motivation behind the shooting.<br />
