The World Health Organisation (WHO) said its review of how Russia produces the Sputnik V coronavirus vaccine found some issues with vial-filling at one plant. The plant has said it had since addressed all of WHO's concerns.

The Sputnik V shot, widely used in Russia and approved for use in over 60 countries, is undergoing a review by the WHO and the European Medicines Agency (EMA). Their approval could open up new markets for the shot, especially in Europe.

In a preliminary report issued on Wednesday...