OKLAHOMA CITY - An early morning fire has forced 10 metro businesses to clean up after a fire gutted their building.
Fire crews estimate the damage at $1 million, making the structure a complete loss.
The fire broke out in a business complex in the 400 block of W. Wilshire early Monday morning.
When crews arrived, flames were shooting from the building.
Firefighters worked for hours to extinguish the blaze.
As the fire burned, windows broke from the heat and the roof collapsed, forcing firefighters to take a defensive stance to keep themselves safe.
Once the fire was out and the scene was cleared, the tenants and building manager worked to salvage what they could.
"This one's really bad for the tenants of that building," said Hugh O'Hara, with McGuire O'Hara Construction.
A cleanup crew worked alongside tenants, boarding up windows at the office complex.
"They're looking to try to get the building protected. We're going to put up some plywood and try to keep the public out of there," said O'Hara.
They also cleared debris from the parking lot so employees in neighboring buildings can get back to work.
"The cleanup process is starting. They're getting some deodorizing, trying to get the parking lot cleaned up so nobody gets nails in tires," said O'Hara.
Firefighter told the building manager they believe the fire started somewhere in the northeastern section of the building
While the building was destroyed, crews were able to save three other buildings on the property from being damaged.
Investigators say it could take several days to figure out what caused the fire.