According to the Washington Post, the suspected shooter, 64-year-old Stephen Paddock, allegedly fired a barrage of bullets from the 32nd floor of the Mandalay Hotel and Casino at those gathered at a country music festival across the street. According to Sheriff Joseph Lombardo of the Las Vegas Metropolitan Police Department, Paddock is believed to have later killed himself and was found dead in his hotel room. An estimated 406 people were reportedly taken to the hospital in the aftermath of what has now been called the deadliest mass shooting in modern US history.
Trump spoke out about the incident on Twitter early Monday morning, offering his "warmest condolences" to those affected.
You can watch the President's remarks via PBS Newshour's livestream above.