(WHAS11) -- Health officials are now trying to figure out what made dozens of workers sick at an Amazon.com distribution center in central Indiana.
Thirty-two workers reported breathing problems at the Amazon facility in Plainfield, near Indianapolis. Firefighters say they were called this morning about workers having trouble breathing and chest pain.
All 32 were taken to nearby hospitals.
None of the workers is believed to be seriously sick.
Firefighters say an empty semi-trailer that had a red crushed pepper substance in it may be to blame.