North Korea was not answering the phone at a liaison office with South Korea for the first time since it opened in 2018 after saying it was abolishing the project that once allowed the rivals to communicate around the clock.

South Korea’s Unification Ministry said Monday its phone calls were going unanswered to the North Korean delegation at the facility in the North Korean border city of Kaesong, ministry spokesman Yoh Sang-key told reporters.

"It is true that inter-Korean exchanges are at a standstill due to several factors including the COVID-19 outbreak, but we will continue to do what we can do to promote peace on the Korean Peninsula,” he said.