American figure skater Alysa Liu has withdrawn from the world championships taking place in Prague, according to the International Skating Union's official website where she is no longer listed among participants.

Liu recently made history by becoming the first American woman since 2002 to capture Olympic gold in women's singles figure skating at the Milano Cortina Games. Her victory marked a significant achievement for American figure skating in the discipline.

The New York Post reported that Liu's withdrawal comes just days after what it described as a "harrowing fan incident," though specific details about the nature of this incident were not provided in the available reporting.

The world championships in Prague represent one of the sport's most prestigious annual competitions, typically drawing the world's top figure skaters to compete for international titles.

Liu's absence from the competition means she will not have the opportunity to add a world championship title to her recent Olympic success. The ISU website's participant listings serve as the official record for championship entries and withdrawals.