A "zany" annual Halloween tradition has failed to materialise in Boulder, Colorado, with the threat of police action quashing the Nude Pumpkin Run.
Each year, dozens have run down the city's streets wearing only shoes and a hollowed-out pumpkin on their heads.
Police said "full" participants this year faced indecent exposure charges.
Up to 100 officers were deployed around Boulder this Halloween
A charge of indecent exposure could have led to participants being registered as sexual offenders.
Last year, some 150 people turned out naked for the 10th event of its kind.
Similar runs have also taken place in other US cities including Seattle, Portland and Arcata.
On its website, the group had warned potential runners that "the violation of the Western societal more, enforced by law, of unclothed public exposure can indeed land you legal consequences.
Each year, dozens have run down the city's streets wearing only shoes and a hollowed-out pumpkin on their heads.
Police said "full" participants this year faced indecent exposure charges.
Up to 100 officers were deployed around Boulder this Halloween
A charge of indecent exposure could have led to participants being registered as sexual offenders.
Last year, some 150 people turned out naked for the 10th event of its kind.
Similar runs have also taken place in other US cities including Seattle, Portland and Arcata.
On its website, the group had warned potential runners that "the violation of the Western societal more, enforced by law, of unclothed public exposure can indeed land you legal consequences.



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