US President Donald Trump has said he looks forward to meeting Kim Jong-un, as he thanked him for handing over possible remains of US Korean War dead.
In a tweet, Mr Trump also thanked the North Korean leader for his “nice letter”, without elaborating.
In a solemn ceremony, Vice-President Mike Pence was in Pearl Harbor, Hawaii, to receive the 55 coffins.
Last month, North Korean state media reported that Mr Kim had accepted Mr Trump's invitation to visit the US.
No date for a visit has been announced.
In a statement on Thursday, White House spokeswoman Sarah Sanders said that Mr Trump's tweet was referring to a letter that Mr Trump received on 1 August from Mr Kim.
She said that it was part of an “ongoing correspondence between the two leaders”.
The repatriation of US remains was agreed by Mr Trump and Mr Kim after their June summit in Singapore.
The US military flew the caskets from Osan Air Base in South Korea.
Each box was draped in a US flag and carried off a military cargo jet by a sailor, a Marine, a soldier and an airman at Joint Base Pearl Harbor-Hickam in Honolulu on Wednesday.
“Some have called the Korean War the…