Kim Yo Jong warned late Monday that a “shocking incident” will “inevitably” occur if U.S. spy planes operate in North Korean airspace east of the peninsula, claiming that the DPRK “scrambled” aircraft the same day and forced the U.S. to “retreat.”

It comes after Pyongyang threatened earlier Monday to shoot down U.S. reconnaissance planes.

In a statement published by the Korean Central News Agency (KCNA), North Korean leader Kim Jong Un’s powerful sister stated that the DPRK military detected U.S. Air Force reconnaissance planes crossing the maritime Military Demarcation Line (MDL) from 5 a.m. on Monday while flying from 270