A search and rescue operation was underway today after one person was killed and one was unaccounted for following an explosion at a steel plant in Pennsylvania.
The explosion sent a cloud of toxic smoke spiraling from the Clairton Coke Works in Pittsburgh after locals heard a loud boom. Officials have asked those within a mile of the plant to stay indoors.
At least 10 people were injured when an explosion was reported at the plant at around 10.50am EST, according to officials.
The explosion sent a shock through the community and led to officials asking residents to stay away from the scene so emergency workers could respond.
The plant converts coal to coke, a key component in the steel-making process. According to the company, it produces 4.3 million tons of coke annually and has approximately 1,400 workers.