Fire has destroyed the main building at the popular St. Jacobs Farmers' Market north of Waterloo, Ont., the Woolwich Fire Department has confirmed.

"The main two-storey building is a total loss," said Deputy Chief Dale Martin, who said the fire department received a call around 1:48 a.m. ET for a fire at the market.

"On arrival, the farmers market building — the main building — was totally involved in fire, coming out through the roof. At that point we concentrated on the other buildings around here, where the livestock sales happen," said Martin.

No one was hurt in the fire, said Martin.

Between 30 and 40 firefighters from four different stations battled the fire, according to Martin. The blaze was under control by around 6 a.m.

There did not appear to be any major damage to surrounding buildings, he said.

Woolwich Mayor Todd Cowan says the loss of the St.Jacobs building is devastating.

"It's a big blow to the community and the township," said Cowan.

Cowan said around 60 vendors have been affected by the fire, and the township plans to do anything it can to help rebuild the market.

The cause of the fire has yet to be determined.

Crews are still working to put out hot spots.