US flags were lowered to half-staff after the Las Vegas shooting

President Donald Trump ordered US flags on federal buildings lowered to half-staff after the deadliest shooting in modern American history.

At least 58 people were killed and more than 500 were injured after 64-year-old Stephen Paddock opened fire on a music festival in Las Vegas Sunday night.

Trump will travel to Las Vegas on Wednesday to meet victims' families, first responders, and local officials.

Here's what Washington, DC looked like on Monday:

NOW WATCH: 'It was an act of pure evil': Watch Trump's statement about the Las Vegas shooting — the deadliest shooting in modern US history

See Also:

• Trump is now going to Puerto Rico on Tuesday and Las Vegas on Wednesday

• TRUMP: Las Vegas mass shooting was 'an act of pure evil'

• Politicians react to Las Vegas massacre, the deadliest mass shooting in modern US history

SEE ALSO: 58 people are dead and more than 515 are injured after a mass shooting in Las Vegas

DON'T MISS: Trump is now going to Puerto Rico on Tuesday and Las Vegas on Wednesday