DES MOINES, Iowa (AP) — Authorities are still investigating a fire that destroyed an industrial warehouse just north of Des Moines.
The Saylor Township Fire Department returned to the scene several times Sunday morning to continue cleaning up the area.
Multiple fire departments worked at the scene until around 5:30 p.m. Saturday.
Three firefighters who suffered minor injuries on Saturday were released from the hospital. Two were treated for heat stress, while another was briefly hospitalized with chest pains.
Roads that were closed because of the fire have reopened.
Jon Davis, deputy director of emergency management for Polk County, says several explosions at the warehouse were likely caused by 55-ballon drums of lacquer thinner.
Authorities have not yet released a cause of the fire.