TOKYO/SEOUL (Reuters) - Flights were cancelled and trains halted on Wednesday as heavy rain from Typhoon Khanun pounded southern regions of Japan and South Korea, just as another storm approached from the east to threaten Tokyo ahead of Japan's peak summer holiday season. Khanun could make landfall at the southeastern South Korean port city of Tongyeong on Thursday, before tracking up the Korean peninsula, authorities said. The storm is currently in the sea south of Kyushu, Japan's southwestern main island some 860 km (530 miles) from Tokyo, after wreaking havoc in the southwestern Okinawa reg...
