Residents of a Toronto neighbourhood were frustrated after a four-alarm fire broke at a scrap metal yard exactly a year after the same location went up in flames.

Heavy black smoke pouring out G.B. Scrap Metal Yard, near Weston and Rogers Roads, forced people into their homes Friday afternoon.

"It stunk outside ... there was too much smoke. Everyone had to go inside," Suzanna Garcia, who lives in the neighbourhood, said.

More than 40 firefighters fought the blaze for more than two hours. One was treated for heat exhaustion after collapsing.

The fire apparently broke out in stacks of old cars, piled in fours. During the blaze, the sky filled with black smoke as scrap metal and rubber tires burned -- a scene all to familiar to residents.

On August 24, 2006, a 5-alarm blaze at the same location sent toxic smoke into the air, prompting the city to issue an air quality advisory warning.

Several businesses and homes were evacuated around the site due to fears of potentially toxic smoke blanketing the area.

One-hundred and fifty firefighters and 38 fire trucks were called to the scene to battle the blaze. It took close to three hours to bring the fire under control.

There are no reports of injuries, but nine large German Shepherds were trapped in the business next to the scrap yard. At least one of the dogs experienced trouble breathing.

Residents said they don't blame the business for the blazes, but said living next to the site isn't very pleasant.

Vince Nicholson, who lives just above the location, said he's already frustrated by the constant noise at the scrap yard.

"I understand business, but they have to understand there are residents they have to take into account," Nicholson said.

"(The owner) can't explain what happened yesterday, but he will try to do what he can to prevent it from happening again."

Police investigated this year's fire, and said they don't consider the blaze suspicious.

With a report from CTV's Naomi Parness