SEOUL, July 18 (UPI) -- Just weeks after opening a massive new beach resort, North Korea has banned foreign visitors from the self-proclaimed "world-class" facility, according to a state-run tourism promotion website. "Foreign tourists are temporarily not accepted at the Wonsan Kalma coastal tourist zone," a notice on the official DPR Korea Tour site said Wednesday. No explanation was given for the ban. The information came in a post announcing the July 1 opening of the facility, which runs