Hundreds of people who came back from the UK recently are untraceable and state authorities are scrambling to locate them amid the fears of the new UK variant of coronavirus. Most of the missing returnees are from Telangana and Karnataka, whose most number of people returned from UK sicne November last week. The Centre has asked the states to test all those who returned from the UK between November 25 and December 23. While 570 are untraceable in Karnataka, the Telangana authorities are struggling to locate close to 300. Odisha too has reported 181 UK returnees as untraceable. A total of 33,000 passengers have arrived at different airports from the UK since November last week.