A "significant" fire at a flower farm in St. Catharines, Ont., has been contained, but residents in a large area northwest of the massive greenhouse operation are still being asked to stay inside, an official says.
No one was injured in the blaze at Pioneer Flower Farms that began late on Friday night, although flames spread to and destroyed about four or five residential buildings that housed migrant workers, according to Jeff McCormick, acting fire chief for St. Catharines Fire and Emergency Management Services.
Smoke, however, remains a concern. Officials from Ontario's ministry of the environment are on the scene monitoring air quality.
"There are still ongoing efforts to gain control and to extinguish the fire," McCormick told reporters Saturday afternoon, about 500 metres from the fire.
"We expect that we will be here for a significant number of hours yet," he said.
'Like a bomb went off'
The fire was in a structure that is a series of greenhouses and outbuildings and about 650,000 to 700,000 square feet in total.
"It's a significant-sized fire," McCormick said. "Probably, this would be the most significant fire that I have had of my 33-year career."
The fire also spread across the grass and caused a "significant" bush fire, the city of St. Catharines said in a release.
Firefighters were called to the farm shortly after 11 p.m., and crews from five departments were able to contain the blaze after several hours of effort.
As many as 125 firefighters were battling the blaze at its peak, McCormick said.
"It was like a bomb went off," said Bill Van Vliet, a neighbour who saw the blaze around 2 a.m.
There were flames shooting in the air and "fire tornados," he said.
"I've never seen anything like it," said Van Vliet. "The whole area was just lit. It was really eerie."
Many people from the area, including neighbours, came to the farm to help. At one point, they set up an irrigation pipeline to bring water to one part of the fire.
Pioneer Flower Farms is a family business that started in 1971, according to its website.
From celebration to disaster
John Van Geest, a longtime neighbour and friend, said the farm owners had been celebrating another business's 40th anniversary last night when they saw black smoke — and ran from a celebration to a disaster.
"It's devastating to see them lose what they've worked the last 48 years to build up," said Van Geest, who co-owns a greenhouse across the road. The farm offered jobs for many people in the community, as well as several migrant workers, he said.
Van Geest said he's spoken to the owners, who kept talking about how they felt for their employees.
Residents in the area northwest of the fire are being asked to close doors and windows and turn off air conditioning.
Van Vliet said the smoke was strong and choking early Saturday and there were plastics burning — they had to leave because the air quality was so poor.
Structure collapsed before crews arrived
When firefighters arrived on the scene one structure had already collapsed and fallen, making it immediately difficult for trucks to reach the fire.
McCormick said there are no municipal fire hydrants in the area, which he described as the rural end of St. Catharines, and tanker tanks were called from neighbouring departments to set up a water supply.
Thick black smoke billowed from buildings as fire crews on ladders tried to douse the flames.
Ontario's Office of the Marshal was on scene Saturday to investigate. A drone was expected to help fire crews get a sense of the fire's size and scope.
Firefighters from St. Catharines, Thorold, Pelham, Lincoln and Niagara-on-the-Lake were involved in efforts to bring the blaze under control. Early Saturday, firefighters from Fort Erie relieved crews that worked through the night.
As for residents sheltering in place, McCormick could not say how many are affected.
Residents told to stay put until further notice
Stephanie Sabourin, spokesperson for the Niagara police, said the shelter-in-place warning applies to a "large area" south of Queen Elizabeth Way, near Seventh Street South, she said.
The wind shifted early Saturday and Sabourin said the shelter-in-place order was adjusted accordingly.
"We are asking residents to stay inside, close their windows, close their doors, turn off their air conditioning and just stay put and to wait for further instruction," said Sabourin, who could not say when the shelter-in-place will be lifted.
"There is some concern with the smoke. It's a pretty dynamic situation. We do have resources on the scene examining and monitoring the scene."
Cause of fire still unknown
Van Geest said he knows how devastating fire can be, having suffered a much smaller blaze a few years ago. He helped unload items from the house and prevent the spread of the fire last night.
"We all know each other, we all work together in the industry. We look out for each other," he said. "There's ... so little anyone can do to mitigate this disaster."
The fire's cause is not yet known.
Roads continue to be closed in the area, which is not densely populated. People are being asked to stay away from the area.
Pioneer Flower Farms, according to its website, is one of the largest "bulb forcing" farms in North America. It works with bulb stock growers in the Netherlands to produce cut flowers and potted plants.
Fire crews continue to work on the Seventh Street property. While the fire is contained it still remains active with hot spots. <a href="https://t.co/xFBXvNGO9G">https://t.co/xFBXvNGO9G</a>
<a href="https://twitter.com/hashtag/STCFire?src=hash&ref_src=twsrc%5Etfw">#STCFire</a> Update 5<br><br>Shelter in place remains for residents in the areas below.<br><br>Fire is contained but still active.<br><br>Crews remain on scene and will for some time still. Air quality continues to be monitored by MOE. Media inquiries regarding fire can be directed to <a href="https://twitter.com/St_Catharines?ref_src=twsrc%5Etfw">@St_Catharines</a> <a href="https://t.co/D6w7rnH6xm">pic.twitter.com/D6w7rnH6xm</a>