Over 1,000 flights cancelled amid dangerous winter weather in US south

Severe weather affects parts of West Virginia to New Mexico with an ice storm concentrated in the Dallas-Fort worth area of Texas

More than 1,000 flights in the US have been cancelled amid dangerous winter weather in the southern region.

Severe winter weather affecting parts of West Virginia to New Mexico was triggering the mass flight cancellations as 40 million people remained under a winter weather alert, CNN reported.