AP Photo/Evan Vucci
President Donald Trump makes a statement about the mass shooting in Las Vegas, Monday, Oct. 2, 2017 at the White House in Washington.
Trump announced the visit in a speech addressing the shooting, which took place in Las Vegas on Sunday night during a country music festival. In his speech, Trump called the shooting "an act of pure evil."
At least 50 people were killed and more than 400 were injured in the attack Sunday night. Police have identified 64-year-old Stephen Paddock as the gunman.
Trump issued a proclamation ordering the American flag be lowered to half mast at the White House and on all government property, to honor the victims of the shooting.
He will meet with victims, their families, first responders, and local officials when he visits. The White House said the FBI and US Department of Homeland Security are assisting investigators.
In addition to traveling to Las Vegas this week, the president will head to Puerto Rico on Tuesday, following the devastation to the island caused by Hurricane Maria.