The United States Department of State said Thursday it wants an explanation from North Korea about the killing of a South Korean citizen who had drifted into DPRK waters.

The U.S. condemned the incident after President Moon Jae-in had earlier described the shooting and burning of the ROK citizen as “shocking” and regretable.

“We fully support our ROK allies condemnation of this act and the ROK’s call for a full explanation from the DPRK,” a state department official told NK News on Thursday afternoon Eastern Time.

South Korea also demanded an apology from Pyongyang earlier on Thursday, with the