Update, 8 p.m., Jan. 26: The missing teenager has been located in good health, York Regional Police report.
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York Regional Police is seeking the public's assistance in finding a 19-year-old last seen at a Thornhill park today.
Jennifer Fournier was at Bayview Reservoir Park, which is at the southeast corner of Bayview Avenue and Sycamore Drive in Markham.
Police say she may not be properly dressed for the weather.
Jennifer is described as 5 feet 6 inches tall with blond hair and was wearing a black fleece jacket.
Anyone with information is asked to contact the York Regional Police at 905-773-1221, ext. 7541 or Crime Stoppers at 1-800-222-tips or leave an anonymous tip online.