Singapore, Jun 11 (AP) Seoul says US President Donald Trump talked with South Korean President Moon Jae-in about his upcoming summit with North Korean leader Kim Jong Un and expressed optimism for a diplomatic breakthrough.

South Korea's presidential office says Trump filled Moon on the details of the pre-summit negotiations between Washington and Pyongyang. The Blue House didn't elaborate on what Moon was told during the 40 minute telephone call.

The Blue House says Moon told him South Koreans will be praying for a "miraculous result." Moon said earlier he hopes the summit will be a "historic milestone" for peace but it will only be the first step in a complex and lengthy process. Moon says the hostility "cannot be solved at once by a single meeting between the leaders."

Trump has accepted an invitation to return to Singapore for a state visit this fall. That's according to Singapore's Ministry of Foreign Affairs.

Trump is expected to travel to Asia in November in conjunction with a pair of regional summits.

The White House did not immediately respond to questions about the president's fall plans.

A White House read-out of Trump's meetings with Prime Minister Lee Hsien Loong today did not include mention of a state visit.

Singapore will be hosting Trump's summit tomorrow with Kim. (AP) KIS

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