Donald Trump calls Las Vegas shooting 'act of pure evil'

The President also called the mass shooting 'senseless murder'

President Donald Trump makes a statement about the mass shooting in Las Vegas (AP)

President Donald Trump has called the mass shooting at a music festival in Las Vegas an “act of pure evil”.

“My fellow Americans, we are joined together today in sadness, shock, and grief," the President said in an address to the nation. “Last night, a gunman opened fire on a large crowd at a country music concert in Las Vegas, Nevada. He brutally murdered more than 50 people, and wounded hundreds more. It was an act of pure evil.”

Mr Trump said we will visit the city on Wednesday.

As a mark of respect for the victims, the US flag will be flown at half-staff at the White House, military posts and naval stations, and upon all public buildings and grounds for the next week.

The FBI and Department of Homeland Security are working closely with local authorities in Las Vegas, Mr Trump said, to assist the investigation into the deadliest mass shooting in modern US history, with the death toll surpassing the 49 killed at a nightclub in Orlando in June 2016.

The alleged gunman, named as 64-year-old Stephen Paddock, opened fire from the 32nd floor of the Mandalay Bay Hotel and Casino, which is next to the concert site. Mr Paddock was found dead in a hotel room, police said.

Mr Trump praised first responders to the scene, saying “the speed in which they acted is miraculous and prevented further loss of life.”

“I want to thank the Las Vegas Metropolitan Police Department (LVMPD) and all of the first responders for their courageous efforts, and for helping to save the lives of so many,” Mr Trump said.

The President has spoken to Nevada Governor Brian Sandoval, Las Vegas Mayor Carolyn Goodman and LVMPD Sheriff Joseph Lombardo.

“What a great pleasure to speak with our President @realDonaldTrump,” Mr Lombardo tweeted. “Thank you for your phone call, your support and your prayers. #LVMPD”.