A 13-year-old girl who told police she had been kidnapped and sexually assaulted by five to seven men has admitted to authorities that she made the story up to cover up her truancy.

The girl, a student at Alhambra High School in Martinez, told police she had been forced into a red car about noon Thursday by several men as she walked down Alhambra Avenue. The girl then said she had been blindfolded and driven to a location where she was repeatedly sexually assaulted by five to seven men before being set free.

The assault was reported to police at 8:30 p.m. Thursday by an Arreba Street resident who said the alleged victim had knocked on his door for help.

Martinez police were wary of the girl's story from the outset because of her lack of details. Friday, they announced she had admitted to detectives she'd fabricated the story because of her truancy.

The girl provided a detailed account of where she had really been during the alleged attack, which was corroborated by other witnesses, police said.

Martinez police did not say whether the girl would face charges for the truancy or for making up the story