EDITOR'S NOTE: This story has been changed due to new information from police.
Prince William County detectives have learned a report of a sex assault in Woodbridge, Virginia, was not true, police said.
A 19-year-old woman told police she was walking from her job on Smoketown Road about 8 p.m. when she was approached from behind by an unknown man, who grabbed and touched her inappropriately.
Detectives said in an update Monday afternoon they learned the information the woman provided was false.
Information was not immediately available on whether she will be charged with filing a false report.