An Ohio oil refinery remained shut down Wednesday after a fire that killed two workers, officials said.

Two staff members died after a blaze at the Husky Toledo Refinery in Oregon, Ohio, BP confirmed in a statement to USA TODAY. The two employees, who were not identified, were injured in the Tuesday evening fire, the company said. 

“Our thoughts are with the families and loved ones of these two individuals,” BP said. 

BP has not said what caused the fire, which was extinguished around 10:15 p.m. Tuesday. There is also no word on the extent of the damage.

The refinery fire happened a few weeks after an electrical fire at a BP refinery in northwest Indiana, which caused the company to temporarily close that facility. No one was hurt.