Montreal police are investigating another arson attack in St-Michel Thursday morning, which follows two similar attacks the previous day.

Someone used a rock to break the window of an establishment called Caf� Bistro Charland at 2347 Charland near de Lormier.

The attacker then threw a Molotov cocktail into the caf� at around 4:25 a.m. Thursday.

There was minimal damage and no one was injured.

On Wednesday morning, two molotov cocktails caused minor damage to two Italian cafes in St. Michel.

Police are trying to figure out if the three incidents are related.