LITTLE ROCK, Ark (Reuters) - All workers injured this week after chemical exposure at a Tyson Foods Inc. chicken processing plant in Springdale, Arkansas, have been released from the hospital, Tyson said in a statement on Friday.
An accidental mixture of chemicals on Monday resulted in the release of chlorine gas, which prompted Tyson, the largest meat producer in the world, to evacuate part of its Berry Street poultry plant in Springdale.
Three-hundred people were evacuated from the plant and 172 taken by ambulance or bus to local hospitals on Monday to be evaluated after exposure to the gas.
Tyson is still investigating the accident, according to a Tyson official.
The federal Occupational Safety & Health Administration has opened an investigation that could take six months.
(Reporting by Suzi Parker; Editing by Corrie MacLaggan and Jerry Norton)