Investigators with Peel Regional Police say the $10-million fire that destroyed 60 townhomes under construction is a case of arson -- and they've got pictures of a possible suspect.

The fire was called in about 11 p.m. on Monday at 1820 Burnamthorpe Road East in Mississauga, creating a spectacular blaze.

Police believe the suspect entered the construction site sometime between 8 p.m. and 10:30 p.m.

They have released images of someone dressed in a dark-coloured, hooded rainjacket.

Police also believe a witness may have seen the suspect just before the fire was set.

"This witness was operating an 'ice-cream' truck on Pagehurst Avenue, and in the parking-lot of Saints Martha and Mary Church, located at 1890 Burnamthorpe Rd. E.," police said in a news release.

"That witness, and any other person who may have information on this matter, is asked to contact officers at 12 Division's Criminal Investigations Bureau, at 905 453-2121, ext. 1233. People may also contact Peel Crime Stoppers at 1-800-222-TIPS (8477), or by visiting their website at www.peelcrimestoppers.ca."

Const. Wayne Patterson of Peel police told ctvtoronto.ca that police have done a few canvasses of the fire area so far. Witnesses told them about the ice cream truck that was in the area about the same time the security camera video was taken.

They hope there may be others who were out and about and possibly saw the suspect walking either to or from the scene. "It was a pretty nice evening, and it wasn't that late," he said.

The same construction fire was the object of an arson attack on Feb. 22.

"There were two very faint suspects captured on video there as well," Patterson said. "That one is still under investigation."

Patterson said three other construction sites in Brampton, one in Halton and one in Toronto have been hit by suspicious fires. This led to the creation of a task force.

"They investigated all of them thoroughly and they couldn't find a common link other than that they were construction sites," he said. "And they couldn't find suspect information."

YouTube video of the Monday night fire has some laughing voice saying, "Burn, baby, burn!"

Patterson suspects the video comes from someone with too much time on their hands.

It doesn't appear the person who posted the video is linked to the incident, but police are in the process of trying to identify the person so they can speak with them, he said.