CRESTON, Iowa (AP) – Authorities have released the name of a man who was fatally injured in an explosion at a fertilizer plant in southern Iowa. Creston Fire Chief Todd Jackson on Friday identified the man as 71-year-old Eldon Ray, of Creston. Jackson says Ray and two other people were injured Thursday morning when an overpressurized air pipe exploded at Green Valley Chemical.

Jackson says Ray died after leaving the scene in an ambulance, and the other two people were taken by private vehicle to Greater Regional Medical Center in Creston, where they were evaluated and released. Jackson did not have their names.

Jackson says the explosion cause is being investigated. He says the blast didn’t cause a fire.