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.

More than 140 flights were cancelled and ferry services suspended after unusually heavy November snowfall caused chaos.

South Korea's capital, Seoul, has been blanketed by a record November snowfall, causing travel chaos and leaving at least five people dead.