Montreal police are investigating a robbery at a dépanneur in the borough of LaSalle Tuesday night.
The incident reportedly happened at 11 p.m. on Thierry Street, near Newman Boulevard.
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Police allege the clerk behind the counter was attacked with a molotov cocktail during the hold-up, and fought back despite being burned.
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Officers said the victim also suffered stab wounds during the altercation.
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The suspect fled with an unknown sum of cash.
Investigators will be watching video surveillance footage to try to identify the alleged robber.