No injuries are reported after an explosion at a Mason City biodiesel plant. The Mason City Fire Department was called shortly before 6 o’clock last night to the Soy Energy plant at 4172 19th Southwest.

No damage or smoke was visible at the plant with fire trucks and firefighters being situated on the west side of the facility. Soy Energy produces biodiesel from soybeans and corn stillage.

The Mason City Fire Department continues to investigate the incident and they’re expected to release more information later today.

By Bob Fisher, KRIB, Mason City