"The call will be made in the near future," the official with South Korean leader Moon Jae-in’s office was quoted as saying by the Yonhap news agency.
Meanwhile, US State Secretary Michael Pompeo will hold marathon talks Friday with South Korean and Canadian counterparts, according to his daily schedule circulated by the Department of State.
American top envoy is set to meet South Korean Kang Kyung-wha at the State Department in Washington DC at 2:30 p.m. EST, followed by talks with Canada’s Chrystia Freeland at 4:30 p.m. EST.
The South Korean ministry said earlier that the two diplomats would discuss Korean denuclearization issue, and the planned meeting between US President Donald Trump and North Korea's Kim Jong-un in Singapore on June 12.