Topic: Kim Yo Jong

North Korean leader Kim Jong Un attended the opening of a weapons exhibition in Pyongyang and gave an address criticizing the United States for instability on the Korean Peninsula, state media reported Tuesday.

The two Koreas reopened communications and military hotlines and successfully tested the systems on Monday, both governments reported, amid signs of thawing relations on the Korean Peninsula.

North Korea launched a newly developed anti-aircraft missile capable of hitting targets at greater distances, state media reported Friday, marking the country's fourth weapons test in the past two weeks.

The profile of Kim Yo Jong, the sister of North Korea's supreme leader, Kim Jong Un, is rising.

North Korean leader Kim Jong Un said Thursday that Pyongyang would restore severed communications lines with Seoul in early October, while at the same time slamming U.S. efforts at diplomacy as a "petty trick."

North Korea said Wednesday that the "projectile test" it performed this week involved a hypersonic missile -- which experts say, if true, could give Pyongyang one of the fastest weapons in the world.

North Korea fired an unidentified projectile eastward into the Sea of Japan at 6:40 a.m. local time Tuesday, the South Korean Joint Chiefs of Staff said.

Kim Yo Jong, sister of leader Kim Jong Un, is calling the prospect of an end-of-war declaration on the peninsula "an admirable idea," and signaled that Pyongyang is open to dialogue if Seoul drops its "hostile" policies.

North Korea confirmed on Thursday that it indeed launched a pair of ballistic missiles from a train-based system, which was part of a flurry of activity in a week that also saw South Korea unveil missiles of its own.

Washington's point man for nuclear negotiations met with his counterpart in Seoul on Monday, saying he was looking to engage with North Korea's representatives and raising the possibility of humanitarian assistance.