According to FemaleFirst, The Kills guitarist has been missing since Wednesday (May 6), shortly after a concert at the bar, La Tulipe in Montréal.
His representative and bandmate, Alison Mosshart, became worried when Hince, 40, failed to return from a walk around the city during the night.
The 30-year-old singer has also posted a message on Facebook urging anyone who may have information to contact the police.