The three parties agreed to carry out measures to withdraw firearms and guard posts at the JSA, Seoul's defense ministry said in a statement following trilateral talks. Last week, the two Koreas conducted a 20-day operation to remove landmines inside the DMZ.
A group of North Korean officials left for Russia on Monday amid media reports that North Korean leader Kim Jong-un is planning to visit Russia later this month or early next month. Moscow earlier confirmed that President Vladimir Putin will hold a summit with Kim this year.