KANSAS CITY, Mo. (AP) — Police in Kansas City, Missouri, say bones found Monday at a downtown construction site are human, and the county's medical examiner and archaeologists are investigating.

A police statement Tuesday offered no additional details about the bones unearthed by construction workers the previous day beneath a former Kansas City Star building, which is now vacant but being renovated.

Police are unsure how the bones came to be there or how old they are....