Britain's Heathrow Airport has refused to allow extra flights from India. The move came before the country is added on Friday to Britain's "red-list" of locations from which most travel is banned due to a high number of Covid-19 cases. The move by Britain comes after it detected more than 100 cases of a coronavirus variant first identified in India, Health Minister Matt Hancock said on Monday. Heathrow Airport said that it turned down the requests from airlines because of concerns about queues at passport control.