China has denied a team of World Health Organisation experts probing the origins of Covid-19 entry to the country at the last minute.
The head of the WHO said on Tuesday he was "very disappointed" that China has still not authorised the entry of a team of international experts to examine the origins of the coronavirus.
The 10-strong team had been due to set off in early January as part of a long-awaited mission to probe early cases of the coronavirus, first reported over a year ago in China's Wuhan.
The WHO has been attempting to send in the team of global experts from a number of countries for months and scientists say it is essential to find out how the virus jumped species into humans.