Subscribe | UPI Odd Newsletter Subscribe MILWAUKEE, June 4 (UPI) -- Frontier Airlines employees on a U.S. flight called a hazmat team to examine a substance found on a diaper-changing counter that turned out to be baby powder. Employees summoned the Milwaukee Fire Department's Hazardous Materials Unit Friday when a flight attendant making her final check before landing discovered a white powder on a diaper-changing counter in one of the plane's lavatories, the Milwaukee Journal Sentinel reported. Advertisement Peter Kowalchuk, a Frontier spokesman, said there were clues like the dotted pattern of the powder and the used diaper in the waste disposal, not to mention the two babies on board the plane. "We contacted the Transportation Safety Administration out of an abundance of caution," Kowalchuk said. "We're confident the substance was baby powder and that at no time was anybody in danger."