The Montreal police's arson squad is investigating after two fires at a LaSalle pizzeria that police are deeming suspicious.

First responders arrived at New LaSalle Pizzeria shortly after 1:15 a.m. on Thursday morning after a fire broke at the restaurant on Thierry Street, near Turley Street.

A smaller fire was put out on Tuesday morning at the same location.

Surveillance video viewed by CTV News shows someone trying to smash the window of the pizzeria on Tuesday with a shovel. The person was unable to get through the glass and appears to throw a fire bomb at the building causing minimal fire damage to the exterior.

On Thursday morning, surveillance video shows someone driving a hatchback through the front door of the restaurant, get out and pour fluid from a jerry can on the vehicle. The person then takes their shirt off, lights it on fire and tosses it on the car.

A major fire erupts and the person flees into a nearby car.

Clean up at scene of fire

Montreal firefighters were able to put both fires out and there is major damage to the pizzeria.

No one was injured.

Montreal police (SPVM) arrested an 18-year-old man near the scene. He is being held in custody on Thursday to be interviewed by investigators.

The SPVM's arson squad is continuing the investigation. 

 
With reporting from CTV News journalist Matt Gilmour.