The Nordic country's meteorological institute DMI warned that heavy snow would likely continue until Friday evening in the east, where the capital Copenhagen is located.

Police said people should avoid going outdoors unless necessary and stay indoors in the capital and the surrounding region.

Copenhagen's airport cancelled flights to Paris and Berlin and warned of "delay and cancellation risks because of snowy conditions." Many schools were closed.

In the second-largest city of Aarhus, bus services were cancelled.