North Korea fired multiple types of short-range ballistic missiles Thursday, South Korea’s military said, around a week after leader Kim Jong Un tested a new weapons system for his latest warship. Some analysts have said the ship could be equipped with short-range tactical nuclear missiles — although North Korea has not proven it has the ability to miniaturise its nukes. Russia and North Korea also recently announced that they had started building the first road bridge linking the two neighbours. North Korea launched a flurry of ballistic missiles last year in violation of UN sanctions. Testing, testingJapan’s defence ministry said there was no impact on Japan from the North Korean missiles, according to public broadcaster NHK.