Police have arrested the current and former chiefs of the Defense Intelligence Command as part of a probe into President Yoon Suk Yeol’s botched attempt to impose martial law.

The special investigation team said on Sunday that they arrested Noh Sang-won, former leader of the command, and Moon Sang-ho, the current commander, without court warrants while investigating them on charges of treason. 

Noh is known to be close to former defense minister Kim Yong-hyun and is suspected of participating in preparations for the martial law decree as a civilian. 

Moon is suspected of sending troops in his command to the National Election Commission's office in Gwacheon on December 3, after Yoon declared martial law.

Police suspect Moon had known about Yoon's plan to declare martial law beforehand or had been part of preparations for its imposition, because troops in his command arrived on the scene just two minutes after the martial law order.