WALKER — The Livingston Parish Office of Homeland Security and Emergency Preparedness responded to a nitric acid leak along Florida Boulevard in Walker. 

According to officials, the leak was reported around 7:20 p.m. The leak came from a parked tank trailer and caused yellow smoke to billow from the ground in the area. 

The scene has since been secured and the chemical cleaned up. Louisiana State Police and the Louisiana Department of Environmental Quality also responded.

Nitric acid, the National Library of Medicine says, is a pale yellow to reddish-brown liquid with reddish-brown vapors and a suffocating odor that is "very toxic by inhalation." It is also corrosive to metals and tissue.