A man was arrested and a woman described as his hostage was released unharmed Tuesday after a lengthy standoff in a room at the Caesars Palace resort on the Las Vegas Strip, police said.

No injuries were reported and police did not immediately say if the hostage-taker had been armed in a high-rise tower of the iconic Las Vegas Boulevard property. Furniture, cushions and other objects fell from a 21st floor window, frightening guests in a swimming pool area below.

"The suspect has been taken into custody. The female is currently with officers," the department said in messages posted mid-afternoon Tuesday. Officer Aden Ocampo Gomez said the woman did not appear to be injured.