Malcolm Turnbull was sworn in as Australia's 29th prime minister on Tuesday afternoon by Governor General Peter Cosgrove.
Mr Turnbull defeated Tony Abbott 54 to 44 votes in a late night leadership ballot on Monday night.
18:49 Marvel vs. Capcom: Infinite will pit Iron Man against Megaman X in 201714
14:07 Study: Believing in Santa Claus could be damaging to children16
12:43 Outgoing Starbucks CEO Howard Schultz: Kevin Johnson better prepared to be CEO13
13:01 Steven Mnuchin, Wilbur Ross Say Trump Will Pick Them as Treasury, Commerce Heads13