A nitric acid tank explosion at a Rolls Royce plant in Indianapolis injured nine workers Friday afternoon.
The Wayne Township Fire Department tweeted updates throughout the incident, which occurred about 1:30 p.m. EDT.
Urgent: Do You Approve Or Disapprove of President Obama's Job Performance? Vote Now in Urgent Poll
The fire department information said the explosion of a 250-gallon tank of nitric acid sent eight people to the hospital with nonlife-threatening injuries, while a ninth was evaluated on site.
The plant was initially evacuated, and Rolls Royce canceled 2nd shift, the fire department tweeted.
Followup information from the fire department reported that the air had cleared:
Nitric acid is corrosive, and can irritate the eyes, nose, throat, and skin. It also can cause severe burns.
Fox 59 in Indianapolis reported that firefighters said a spill happened while transferring the nitric acid, which then caused the explosion.
Earlier this week, just a trace of nitric acid in a barrel being used by the Oklahoma City Police Department caused smoke that sent one officer to the hospital for shortness of breath, KOCO reported
. The barrel had been donated to the police department, and officers were unaware it contained a small amount of nitric acid when they used it for storage for confiscated equipment.
Editor's Note: Do You Support Obamacare? Vote in Urgent National Poll
© 2015 Newsmax. All rights reserved.