SEOUL (PHILIPPINE DAILY INQUIRER/ASIA NEWS NETWORK) - South Korean President Moon Jae In and Philippine President Rodrigo Duterte are expected to discuss mutual concerns and the developments in the Korean peninsula in talks scheduled on Monday (June 4).

Duterte arrived in South Korea on Sunday morning for a three-day official visit on the invitation of Moon, whom he will meet on Monday at the Blue House, the executive office and official residence of the South Korean leader.

Philippine Ambassador to South Korea Raul Hernandez said the two leaders will talk about mutual concerns that will likely include the "hot issues" in the Korean peninsula.

Moon has been instrumental in the historic summit meeting between United States President Donald Trump and North Korean leader Kim Jong Un, which is pushing ahead this month in Singapore.

The summit comes after Moon and Kim had their historic first meeting in April.

"Because of the hot issues about the Korean Peninsula, I think they will also discuss this issue, as well as other regional issues including probably some wider Asia-Pacific region issues," Hernandez said in an interview with Radio Television Malacanang.

The two leaders will also discuss "how to ensure the interest and well-being of the Filipinos here in Korea, and also about the safety and security of the Filipinos in South Korea, and the safety and security of Korean people in the Philippines," according to Hernandez.

He said South Korea is the biggest source of visitors to the Philippines, with 1.7 million tourists last year (2017). In turn, there were 450,000 Filipino tourists who visited South Korea last year. There are also 66,000 Filipinos living and working in South Korea.