A white powder spilled on a light rail car in Douglas County posed no risk to the commuters onboard, the Regional Transportation District said.
RTD shut down train service at the Lincoln Light Rail Station in Lone tree at 7 p.m., while local hazardous materials crews assessed the situation.
The station was reopened at 10 p.m.
RTD spokesman Scott Reed said he did not know how much powder was spilled, or what the powder turned out to be, other than non-hazardous. He said an investigation is under way to determine if it was a hoax.
Authorities across the metro region are moving quickly on suspicious packages and substances while the Democratic National Convention is going on in Denver.
Earlier in the day, the U.S. Department of Homeland Security scooped up a bag left at the light rail park-N-Ride in Greenwood Village, which turned out to be just a forgotten bag that posed no risk, officials said.
