A truck overturned this morning on the Paseo Bridge in Kansas City, spilling at least 500 gallons of hydrochloric acid.

Hundreds of gallons of hydrochloric acid were spilled this morning on the Paseo Bridge in Kansas City, snarling traffic in parts of downtown near the riverfront.

The Missouri Department of Natural Resources said it had a team on the scene and said none of the corrosive acid had reached the Missouri River. The Paseo Bridge carries Interstates 35 and 29 over the river.

The DNR said a truck carrying 45,000 pounds of the acid overturned at about 7:15 this morning on the northbound ramp near Front Street. It said about 500 gallons had spilled but that the rate of leakage had slowed by 9:30 a.m.

Hydrochloric acid has a variety of industrial uses. It can badly damage the eyes, lungs and skin. When spilled, it can cause a cloud, which is reported to have happened this morning.