At least two people have been killed in what local police have described as a murder-suicide in Las Vegas.
Police were on the scene after reports of gunfire on Friday night at the Excalibur Hotel in the US state of Nevada.
The Friday evening shootings happened near the front entrance of the high-rise hotel on the Las Vegas strip.
"Someone started shooting inside Excalibur and I'm stuck in our dressing room waiting to see if it's safe to come out,"
tweeted Uraina Serna, an area model.
Ray Steiber, of the Las Vegas police force, said a man shot a woman working as a vendor at the hotel's concierge desk before turning the gun on himself. The shooter was found dead at the scene.
The woman was transported to a local hospital, where she was pronounced dead. Neither the gunman nor the victim was identified.
Steiber said the relationship between the shooter and the victim wasn't immediately clear.
The shooting happened as the hotel's registration desk was busy on a Friday night with the National Finals Rodeo and other events in town.
Steiber said patrons scattered at the first sound of gunfire, and no one else was wounded.
Gordon Absher, spokesman for MGM Resorts International, which owns the Excalibur and several other hotels on
the Las Vegas Strip, said the hotel and casino remained open to guests and patrons.
The area where the shooting took place remained cordoned off by police while the investigation continued.
The shooting came the same day a gunman shot dead 20 school children at a suburban elementary school in Connecticut, ultimately killing at least 27 people including himself in the one of the worst incidents of its kind in US history.
The Excalibur has approximately 4,000 rooms and is located at the intersection of Tropicana Avenue and Las Vegas Boulevard.