Authorities evacuate about 3,000 people from a Michigan town after hydrochloric acid was reported leaking from a metal-finishing plant.
The acid leaked from a tank on the plant's roof, creating a cloud over the area just outside of Detroit.
Two schools in the two-square-mile evacuation zone have been cleared as a precaution.
Officials say the leak could become a bigger problem if it rains.
Hydrochloric acid is a highly corrosive liquid that can cause burns if it comes into direct contact with the skin or eyes.
Rain can turn the chemical into a gas, which can burn lung tissue and cause other respiratory problems.