KANSAS CITY (AP) – Jackson County prosecutors have dropped charges against a woman who spent six days in jail after police said she injured an officer during a traffic stop.

The Kansas City Star reports Monday that the 21-year-old woman was released over the weekend. Her mother says her daughter was at home asleep during the incident and that her temporary license tag had been stolen.

Kansas City police say a silver Nissan struck the officer as its driver fled the traffic stop on Nov. 8. Investigators linked the woman to the incident using the tag.

The woman’s mother says her daughter shouldn’t have been charged without a “proper investigation.”

The extent of the officer’s injuries is unclear.