Apparently the endangered Korean gorals are having a mass die off:

A dead goral is seen on the side of Misiryeong Road in Seorak National Park on April 4. Courtesy of the  National Park Conservation Network

A dead goral is seen on the side of Misiryeong Road in Seorak National Park on April 4. Courtesy of the National Park Conservation Network

The long-tailed goral, a species both classified as endangered and recognized as a national treasure, has faced significant mortality issues over the past five years, with six out of 10 deaths attributed to exhaustion and starvation.

This issue is especially severe in the regions of Hwacheon and Yanggu in Gangwon Province, near the demilitarized zone, where approximately 80 percent of goral deaths have occurred, with 77.4 percent dying from starvation.

Korea Times

You can read more at the link, but apparently increased fencing around the areas Gangwon province where they live has made it difficult for these animals to find food.