President Trump said Monday that his administration's response to historic storm damage in Puerto Rico has been "amazing," vowing to meet with survivors of Hurricane Maria when he visits the island on Tuesday.

"We are going to be seeing all of the first responders, the military, FEMA, and frankly — most importantly — we're going to be seeing the people of Puerto Rico," Trump told reporters at the White House on Monday.

"It's been amazing, what's been done in a very short period of time in Puerto Rico," Trump said. "There's never been a piece of land that we've known that was so devastated. Bridges are down, the telecommunications was not existent, and it's in very, very bad shape. The electrical grid, as you know, was totally destroyed."

Critics have accused the administration of reacting too slowly to the humanitarian crisis created by Hurricane Maria, which made landfall on Puerto Rico last month as a Category 5 storm. Trump and the mayor of San Juan have traded barbs on social media and in press interviews over the president's perceived detachment from the problems in Puerto Rico.

Trump also announced that he plans to spend at least a "full day" in Las Vegas on Wednesday in response to a massive shooting there on Sunday night.

"We'll be going to Las Vegas on a very, very sad — very sad moment for me, for everybody, no matter where you are, no matter what your thought process is," Trump said. He noted his trip will include a visit with Nevada Gov. Brian Sandoval, the mayor of Las Vegas, the sheriff, and officials from the Las Vegas Police Department.

More than 50 people were killed and more than 500 injured after a gunman opened fire from a 32-story-high perch on the crowd at a country music festival.