HOUSTON, Texas (WKOW) -- People in Houston say an explosion could be felt across the area early Friday morning.
Our ABC affiliate KTRK reports the explosion happened at manufacturing plant, Watson Grinding and Manufacturing. The owner told KTRK the explosion originated from a propylene tank. Propylene is an extremely flammable gas.
Multiple buildings are destroyed.
Authorities said one person was unaccounted for, and another had to be taken to the hospital with injuries. Two other people were hurt, who are expected to recover.
It's unclear if anyone else was hurt.
This is a developing story.