Copperfield's lawyer said a woman had made "serious allegations" against the magician, but insisted they were false.

Copperfield (51) is known for his stunts, such as apparently walking through the Great Wall of China.

The FBI would not explain the reasons for the raid, saying only that the investigation was related to a case in Seattle.

Copperfield's lawyer issued a prepared statement saying it was important the allegations be put into perspective.

"An unidentified woman has made serious allegations against David Copperfield, " he said.

"Although authorities have not revealed her identity to us, we know these allegations are false because David Copperfield has never forced himself on anyone."