Jeff Koons, 68, has not made any comment on the incident. His range of Balloon Dog sculptures are among the most iconic works of contemporary art, and have sold for tens of millions of dollars.

A sculpture by American artist Jeff Koons sold on Wednesday for $91.1 million at an auction organized by Christie's in New ...

Picasso, grandson of Pablo, are hanging out in a courtyard of the Alhambra palace in southern Spain. The American ...

The American multimillionaire artist talks about why money is ... I notice he is never not smiling. Balloon Dog (1994-2000) by Jeff Koons Credit: Ted Soqui/Corbis via Getty Images But ...