A Janesville woman was charged with fourth-offense intoxicated driving and driving while revoked after an incident early Thursday.

Janesville police officers responded at 2:02 a.m. Thursday to a traffic complaint near Interstate 90/39 and East Racine Street, according to a police news release.

Haley Olsen, 23, of 444 Eisenhower Ave., had struck a guardrail on the Interstate, according to the release. Officers located Olsen near Palmer Park and stopped her at Mohawk Road and Cree Court.

Olsen displayed signs of impairment, including disorientation, drowsiness and slow speech, police said.

Police suspect Olsen was under the influence of a central nervous system depressant, according to a criminal complaint filed in Rock County Court on Thursday.

She was released on a signature bond after her court appearance.