The Sûreté du Québec (SQ) is asking for the public's help in locating a teenager from Prévost, in the Laurentians, who has been missing since Thursday.

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William St-Aubin Girard, 15, was last seen July 21 around 10 p.m. According to the SQ, the teenager, who would move on foot, could be in Montreal.

“His loved ones have reason to fear for his health and safety,” the provincial police also said.

Measuring 1.88 m (6 ft 2 in) and weighing 70 kg (154 lb), William St-Aubin Girard has blond hair, shaved on the sides. He has brown eyes and a half-shaved eyebrow. At the time of his disappearance, he was wearing black jeans, black shoes and a shoulder bag.

Anyone who sees William St-Aubin Girard is asked to contact the authorities by dialing 911.