Over the weekend, a white powder was present on several downtown Lexington sidewalks, but figuring out why proved to be a struggle.

Video on Short and Jefferson Streets shows the powdery substance every 20 feet or so.

WKYT reached out to city hall and the health department on Monday morning, but they were not aware of who put the powder there. Businesses in the area are also stumped.

By Monday afternoon, the health department reached back out after having one of its Environmental Health Specialist investigate. That specialist says the "white powder" was chalk, much like the kind used for marking baseball fields. He said it appears as though there was a walking/running course laid out with directional arrows along with lines of white chalk dust.