U.S. Secretary of State Mike Pompeo on Sunday confirmed that President Donald Trump had sent a letter to North Korean leader Kim Jong Un, voicing hopes of a quick restart to denuclearization talks.

"I am hopeful that this will provide a good foundation for us to begin to continue the important discussions with the North Koreans to denuclearize the peninsula," Pompeo said.

A report released Sunday by the North's official Korean Central News Agency said Kim had received an "excellent" letter from Trump, just days before the U.S. leader travels to Asia for the Group of 20 summit in Osaka and then on to South Korea for meetings with President Moon Jae-in.