Huawei suffers 'huge blow' as UK moves to phase it out of its 5G network plans

The U.K. is moving to phase Huawei out of its 5G network development plans over national data security fears, prompted by U.S. sanctions in May that sought to restrict Huawei's access to chips made with U.S. technologies and equipment. CNBC's Arjun Kharpal reports.