A woman hurled a shoe at Hillary Clinton as the former secretary of state was delivering a speech at a Las Vegas hotel, but Clinton dodged it and continued with her remarks, a U.S. Secret Service spokesman said.

Secret Service spokesman George Ogilvie said the protester 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.

"As agents and hotel security approached her she threw a shoe and was immediately taken into custody by the Secret Service and hotel security," Ogilvie said.

Footage of the incident broadcast by KTNV-TV showed Clinton, 66, crouching to dodge an object as she stood on stage.

The Las Vegas Review-Journal newspaper reported that the former first lady joked about the incident as she continued her speech to some 1,000 people attending a metal recycling conference

"Is that somebody throwing something at me?" Clinton asked, according to the Review-Journal. "Is that part of Cirque du Soleil?"

The newspaper quoted Clinton as saying, "My goodness, I didn't know that solid waste management was so controversial."

Mark Carpenter, a spokesman for the Institute of Scrap Recycling Industries, which hosted the speech, said that the woman was not affiliated with the event.