Washington (CNN) Police on Thursday said there was no evidence that a sexual assault occurred outside a Donald Trump rally this week in Wisconsin -- but they are still looking for a man who pepper-sprayed a teenage girl.

At a news conference Thursday afternoon, Janesville, Wisconsin, police revised their earlier statements this week saying that the 15-year-old girl was also groped in the lead-up to the spraying incident.

There was no evidence of sexual assault at the Tuesday event, Janesville Police Chief David Moore said, but police are still looking for a man in a red "Make America Great Again" cap in connection with the incident, whose picture they released on Wednesday.

A 19-year-old woman was also hit by the pepper spray.

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