Officials from the White House, Pentagon and State Department all said they were in close contact with their South Korean counterparts as they assessed the situation.

The South Korean military says it will maintain martial law until it is lifted by President Yoon Suk Yeol, despite the nation's parliament voting to block its enforcement, according to the country's national broadcaster.

South Korean President Yoon Suk Yeol has said he will lift his martial law order following the parliamentary vote to block it. CNN’s Mike Valerio reports from the scene in Seoul.