South Korea grappled with heavy snowfall for a second day on Thursday, with dozens of flights cancelled, ferry operations suspended and at least four people reported dead in a bitter winter, though conditions showed signs of easing. The winter snowfall was the third-heaviest in Seoul, the capital, since records began in 1907, the Yonhap news agency said, citing data from the city. More than 40 cm (16 inches) of snow piled up in parts of Seoul by 8 a.m., forcing the cancellation of more than 140 flights, although weather officials lifted heavy snow warnings in the capital's metropolitan area by 10 a.m. on Thursday.