U.S. President Donald Trump has reportedly wished North Korean leader Kim Jong Un a happy birthday via South Korean intermediaries, the first known exchange between the two since their June meeting at the Demilitarized Zone that divides the two Koreas.

South Korean national security director Chung Eui-yong said Friday that Seoul had conveyed a message by Trump to Kim wishing him a happy birthday, which was believed to be Thursday.

Returning from a visit to Washington on Friday, Chung said that Trump requested during a meeting this week at the White House that South Korean President Moon Jae-in deliver the message to Kim.