South Korea calls for probe as forced labour feud with Japan deepens

SEOUL/TOKYO (Reuters) - South Korea called on Friday for an international investigation of what it said were accusations by Japanese officials that it had passed some high-tech materials imported from Japan on to North Korea in violation of U.N. sanctions.The call is the latest twist in a dispute between the U.S. allies that could disrupt supplies of chips and displays from South Korea's tech giants Samsung Electronics and SK Hynix , which count Apple Inc and other smartphone makers as..