June 02, 2020

N.Korea releases large amounts of water from Hwanggang dam
Water rate gradually rose from Tuesday early morning: South Korean government data

North Korea began releasing large amounts of water from its Hwanggang dam, located at Imjin River early on Tuesday morning.

South Korea media reported the release was “abruptly” started on Wednesday morning,  raising concern of a North Korean “water attack” (Su-gong) aimed at flooding parts of Seoul, though the claims are inconsistent with government data.