North Korea warned the U.S. on Tuesday that any attempt to block the improvement of inter-Korean relations would be a “foolish act” that would have negative consequences for Washington and its alliance with South Korea.

The Rodong Sinmun, an organ of the Workers’ Party of Korea (WPK), reported the U.S. has asserted that inter-Korean projects should “keep pace with the denuclearization” rather than occur independently of it. It labeled this position as “eccentric”.

In the editorial, the newspaper said the U.S. had already interfered with inter-Korean attempts to establish a joint liaison office, connect and modernize railways and roads, as