Fires at a feed processing plant throughout the weekend repeatedly occupied Sioux City, Iowa, responders.
The initial fire broke out at 4:30 p.m. Friday, the Facebook account for the Feed Energy Company states. Feed Energy processes vegetable oil for use in poultry and swine feeds.
Four workers escaped without injuries. Sioux City firefighters extinguished the fire and remained on the scene until 10:30 a.m. Saturday monitoring for hot spots.
Unfortunately, firefighters were called back to the plant shortly before 8 p.m. Sunday when smoke was again reported.
No cause has been given for the initial fire Friday.