Australian Prime Minister Malcolm Turnbull said Tuesday the police are investigating a deadly hostage siege in Melbourne the previous day as an act of terrorism after the Islamic State militant group claimed responsibility."It is a terrorist attack and it underlines the need for us to be constantly vigilant, never to be deterred, always defiant, in the face of Islamist terrorism," Turnbull said in a press conference, after the shooting and hostage-taking incident on Monday left two people, including the gunman, dead.(Getty)The Islamic State said through its Amaq news agency on Tuesday that …READ FULL ARTICLE
