Montreal has been hit by a rash of restaurant firebombings, including at this eatery on Maurice Duplessis Boulevard in Rivière-des-Prairies in November. ((CBC))

Montreal police are continuing on Thursday to investigate the second suspicious fire at a Montreal-area restaurant in as many days.

Firefighters responded to a call around 9 p.m. ET Wednesday at Rimi Ristorante at 8760 Pascal Gagnon St. in the Saint-Léonard district.

Once the fire was out, officials noticed signs, including a broken door, that it had been deliberately set. However, officials could not say whether there were traces of anything that may have started the fire.

"First arriving unit noticed two broken windows and one broken door in the back of a business," said fire operations Chief Dennis. "Fire was coming out of those two windows."

It was the second restaurant in 24 hours affected by arson, although officials won't say if the incidents are believed to be linked.

Rash of arsons

About 24 hours earlier, in Montreal North, an Italian café sustained minor damage in another arson attack.

Montreal has been inundated with a rash of late-night arsons at different Italian-style cafés in recent months.

Police have said 19 recent arsons, primarily carried out in cafés, are linked to clashes between Italian Mafia groups trying to carve out territory.

On Dec. 9, federal, provincial and local police raided a dozen Italian cafés. They arrested 11 people, and seized drugs, money and business documents.

Police said they hoped the raids would help them gather information to calm growing tensions.