Former secretary of state Hillary Clinton had a shoe thrown at her whilst delivering a speech in Las Vegas.

A woman in the audience hurled the object at Mrs Clinton as she spoke at the Institute of Scrap Recycling Industries conference, but the 66-year-old crouched to to dodge the shoe and continue with her remarks.

Secret Service spokesman George Ogilvie said the shoe-thrower was not a ticketed guest for Clinton's speech at the Mandalay Bay hotel and had been spotted by Secret Service agents and hotel security guards before the incident.