Transcript for President Trump calls Las Vegas mass shooting 'an act of pure evil'

On the go back to secede they get the White House or senior White House correspondent. They we just heard from the president moments ago now know he's visiting Las Vegas on Wednesday. That's right Georgia has been. Pardon me would also learned that he has ordered flags to fly. At half staff at all federal buildings. Across the country enough starts right here at this White House for the flat on top of the building is now at half staff here he just wrapped up those brief comments about four minutes long. Where he said that the shooting. Is it Q an act of pure evil take a listen. Hundreds of our fellow citizens are now mourning the sudden loss of a loved one he parent a child. A brother or sister. We cannot fathom their pain we cannot imagine. Their laws. To the families of the victims. We are praying for you. And we are here feed. And we ask to help sees through this very dark period. Now the president says that in moments of tragedy and horror like this America comes together. In times of chaos as we as a nation search for meaning in answers in minutes of all these questions out there he said he is offering. Very clearly words of comfort the words of unity speaking directly to those victims and their families as Wilson's first responders who were still out there in Las Vegas working through this scene. As we mentioned at the beginning here he is going to Las Vegas on Wednesday he just told us that in that address to the nation. And we are told that that trip to Puerto Rico at this point is still on for tomorrow at George and Robin paced. Many thanks much.

This transcript has been automatically generated and may not be 100% accurate.