Firefighters say a worker was picking up empty chlorine drums this afternoon in the basement of the hotel. That's when they say the worker tried to pour some remaining chlorine into another drum and spilled it.
Two employees had to go to the hospital with minor eye and lung irritation, officials said.
Haz-Mat crews cleaned up the spill. The first and second floors were evacuated so they could be ventilated.
The all-clear was given at the hotel around 3:30pm.