Montreal police are looking for suspects captured on video outside a carpet store that was set on fire on June 9. ((Montreal police))

Montreal police want the public's help in tracking down two suspects caught on tape at a carpet store that was set on fire earlier this year in the city's north end.

The surveillance video, released on Wednesday, was captured at 3:50 a.m. on June 9 outside Tapis Téhéran on l'Acadie Boulevard in the Bordeaux-Cartierville district.

Two white men wearing dark clothing are seen walking on the street in front of the store, one with what appears to be a gas canister in his hand.

Police believe the men broke the front window of the shop before dousing it with fuel and setting it on fire.

Police are also looking for a third man who may have been a witness. The man, described as having a ponytail and wearing a light-coloured shirt, was spotted on another video camera getting into a vehicle nearby.

Anyone with information is asked to call police at (514) 393-1133 and leave an anonymous message.

Police asking for tips on arson cases

The release of the video comes as Montreal police are reaching out to the public to help solve a series of arson crimes at Montreal restaurants, bars and businesses over the past year.

Commander Mario Lamothe, head of the Montreal police arson unit, said not all of the fires are connected.

However, he said the frequency of the incidents suggests that organized criminals are trying to muscle in on new territory.

"Yes, it's somebody who is asking low-level criminals to set fires, to send a message. But which message and why? That's where we're having problems," said Lamothe.

At least 18 arsons or attempted arsons have taken place in Montreal since June.