US President Donald Trump on Monday met with Prime Minister Lee Hsien Loong of Singapore, and after which the two leaders continued their conversation over lunch, reported RIA Novosti news agency of Russia.

But, subsequently, they refrained from any contacts with journalists, and they just were photographed and shook each other’s hands.

The talk was held ahead of Trump’s slated summit Tuesday in Singapore with North Korean leader Kim Jong Un, who also had met with the Singaporean PM, on Sunday.