Ten horses with the St. Louis police department’s mounted patrol division were tested for lead poisoning earlier this week after high levels of the toxic element were found in the in the floors and walls of their stable, stltoday.com reported.

None of the horses or the 22 employees showed elevated levels of lead. The Board of Police Commissioners of now debating whether to board the horses for six months while the lead is abated.

An apparent lightning strike killed five horses in an Enfield, N.Y. pasture this week, The Ithaca Journal reported.

Farm owner John Rancich found the five down in the 60-acre pasture following a severe thunderstorm. A veterinarian said they were likely struck by lightning, and it’s believed death was instantaneous