CLINTON, Iowa (AP) — One firefighter died and another was critically hurt while fighting a fire at a grain storage facility in eastern Iowa.

Clinton City Administrator Matt Brooke says 33-year-old Lt. Eric Hosette died in Saturday’s fire at the ADM grain facility in Clinton, and 23-year-old Adam Cain was injured.

Clinton Fire Chief Mike Brown says firefighters were called to the ADM facility before 6 a.m. Saturday. While firefighters were battling the blaze inside a silo, there was an explosion.

The cause of the fire is under investigation.