Heavy smoke and flames from a building distracted drivers along Highway 11 south of Line 5 in Oro-Medonte on Wednesday morning, prompting several calls to 911.

The blaze broke out shortly before 10 a.m. and was so intense the rear wall of the metal structure collapsed.

Crews shuttled in water from a nearby hockey arena to gain control of the fire.

Oro structure Fire

Deputy Fire Chief Scott Andrew tells CTV News the contents inside the building fuelled the flames.

No one was inside at the time. Officials say it's too early to determine a cause.