The launches were the latest in an unprecedented number of missile tests conducted by North Korea this year, as Pyongyang presses on with weapons development amid speculation it could test a nuclear weapon for a seventh time.The three short-range ballistic missiles were fired from around 8 am local time (2300 GMT) from North Hwanghae Province, south of the capital Pyongyang, South Korea's Joint Chiefs of Staff said.All three flew at an altitude of around 100 km (62 miles) and covered a range of around 350 km (217 miles), Japan's defence ministry said."North Korea's ballistic missile(s) launch is a grave provocation that undermines peace and stability on the Korean Peninsula as well as the international community," South Korea's Joint Chiefs of Staff said, condemning it as a clear violation of the U.N. Security Council resolution and urging it to stop immediately.On Monday, five North Korean drones crossed into South Korea, prompting the South's military to scramble fighter jets and attack helicopters to try to shoot them down, in the first such intrusion since 2017."