Yandex, which created the country's most popular search engine as well as taxi and shopping apps, has set up the service as part of an alliance between internet companies and the Russian sovereign wealth fund.

Initially it offered at-home tests only to those aged 65 or over but from this week the service is available to anyone who applies online.

A medic will come to an applicant's flat in protective clothing and take swabs.

Copyright Agence France-Presse, 2020