South Korea Fires Warning Shots 

South Korea’s military said Tuesday it detected explosions on two cross-border roads connecting the country to North Korea, amid a significant recent deterioration in inter-Korean relations.

The South Korean Joint Chiefs of Staff said in a statement that North Korean forces detonated explosives on the Gyeongui Line and Donghae Line, “presumably to block connection roads.”

North Korean forces also deployed “heavy equipment” for “further operations,” the JCS said.

There was no damage to South Korean forces, it added.

“Our military has fired warning shots in areas south of the Military Demarcation Line,” the JCS statement said.

“The military is closely monitoring North Korean activities and has reinforced surveillance and alert posture in cooperation with the U.S., maintaining a state of full readiness,” the JCS said.

Read more here from ABC News.