A man was arrested and a woman described as his hostage was released Tuesday following an hourslong standoff in a room at the Caesars Palace resort in Las Vegas, authorities said.

No injuries were reported and the woman was unharmed, according to the Las Vegas Metropolitan Police Department. Video footage posted on social media showed furniture, cushions, and other objects fall from the high-rise tower and startling guests in a swimming pool area below.

“SWAT made entry into the hotel room and has taken the subject into custody. The female who was also in the room is safe and with officers,” police updated on Twitter at 2:46 p.m.

Police said the standoff began around 9:15 a.m. with a report from hotel security of a domestic disturbance. Las Vegas police Capt. Stephen Connell said a man and woman were arguing and that the man pulled the woman into a room “by force.”

Officers attempted to contact the individuals in the room but the man refused to open the door and told officers he was armed, prompting a SWAT team and crisis negotiators to respond to the scene.

It was not immediately clear if the man was actually armed and if the two individuals were in a relationship, according to Connell. Police said the investigation is ongoing.

Resort guests frightened by incident

Outside, resort guests were alarmed by several loud bangs and falling glass from a room about two-thirds up the 29-story Palace Tower, one of six towers at Caesars Palace. Some guests thought there might have been a shooter or attack.