Preliminary reports of a powder found in a vile, in a room of an extended stay hotel here, on the outskirts of town have shown to be risen. Both Hotel workers and a few policemen were sent to the hospital for observation. None have shown any signs of illness. Further tests are underway and this story is considered still breaking.
This is referred to as a "hazmat" situation and Homeland Security are on the scene.
More at KLAS TV, Las Vegas and Fox 5 News