North Korea likely jammed GPS signals near the inter-Korean maritime border last week, in a new wave of interference just ahead of the upcoming presidential vote that could endanger ships and aircraft.

The ROK’s 6th Marine Brigade stationed at the country’s northwestern frontier near Baengnyong Island in the Yellow Sea detected a series of “GPS disturbances” in the area last Thursday, warning fishermen of signal jamming, a police spokesperson on the island told NK News.

The officer described the jamming as a “regular occurrence” and suggested that the DPRK could be behind the interference, citing previous caseswidely reported