UPDATE: Massive blaze ripped through a structure in Streetsville Friday night

Emergency crews contained a massive blaze at a residential building under construction in the Streetsville neighbourhood of Mississauga Friday night.

Peel Regional Police confirm they were called to the Tannery Street and Joymar Drive area of Streetsville at 7:05 p.m. for a report of a massive fire.

According to police,the fire appears to have originated in a building under construction.

Witnesses at the scene posted videos to social media where explosions could be heard.

After more than two hours of fighting the flames, firefighters reported no injuries and the fire was largely contained by 9:30 p.m.

Residents at the scene told CP24 the epicenter of the fire is a building under construction. It is next door to a seniors’ home, the Credit River Retirement Residence.

Firefighters could be seen on the roof of the seniors’ home.

Police said the seniors were "sheltering in place" and officers were ready to evacuate them if necessary.

Const. Lori Murphy added a number of homes were evacuated near the fire scene but the seniors’ home was never evacuated.

Newstalk 1010's Ted Woloshyn lives two streets away from the scene of the fire and said his power went out at about 8:30 p.m. The electricity was cut off as a precaution, impacting approximately 1,100 customers.

A pair of residents told CP24 they heard an explosion while sitting in an elevator in their condo building more than one kilometre from the scene.

Robert Ricard and his wife were forced to leave their home about 10 minutes after the blaze erupted.

“I was outside watching it. You could hear the gas tanks going off. I stood out there for about 10 minutes and then the police came and told us to leave.”

He and his wife stayed at an emergency staging area in a transit bus for a while before their daughter came and drove them to a hotel.

with files from CP24/Justine Lewkowicz