South Korea began clearing mines from two sites inside the heavily fortified border with North Korea on Monday under tension-reducing agreements reached this year. Seoul says North Korea is expected to do the same.

The development comes amid renewed international diplomacy on North Korea’s nuclear weapons program after weeks of stalemated negotiations. U.S. Secretary of State Mike Pompeo is to visit Pyongyang this month to try to set up a second summit between President Donald Trump and North Korean leader Kim Jong Un.

Read more at Associated Press News.