According to South Korean officials in Washington, Kim had proposed meet with Trump and offered to suspend his nuclear and ballistic missile programmes to begin negotiations, Efe reported.
The head of South Korea's National Security Office, Chung Eui-yong, who led Seoul's delegation to Washington, delivered to Trump a letter handed to him on Monday by Kim during their meeting in Pyongyang.
In his latest tweet Trump has informed that Kim Jong Un talked about denuclearization with the South Korean Representatives, not just a freeze.
He tweeted: