A flying object crossed into South Korea from the North at 1600 KST, South Korea’s Joint Chiefs of Staff (JCS) announced on Tuesday.

“Our military detected an unidentified projectile crossing the Military Demarcation Line (MDL) in Cheorwon area of Gangwon Province at 1600 KST today (May 23) and did warning broadcasting and shots in accordance with the procedures,” the JCS said in a preliminary statement.

South Korea’s army responded with 90 rounds of K3 machine-gun fire in the direction of the North, according to Yonhap News Agency, and has not yet been able to identify the “projectile”.

“We are analyzing the projectile,” the statement added. “Our military is heightening the anti-aircraft surveillance and maintaining alertness.”

South Korea’s Ministry of National Defense (MND) declined to comment on reports that shots were fired into the North, as well as reports that the device which crossed the MDL was a drone.

Cheorwon area in Gangwon Province, where the projectile is said to have crossed the MDL

Further details to follow