Berlin (CNN)Germany's vaccine commission has recommended that the coronavirus vaccine developed by AstraZeneca and the University of Oxford should not be given to people older than 65 years, the German Interior Ministry said Thursday.

The Standing Committee on Vaccination at Germany's Robert Koch Institute (RKI), the country's main public health authority, has found there is insufficient data on the effectiveness of the vaccine for this age group, according to a statement from the ministry.

"It is not possible to make a statement for the effectiveness of the AstraZeneca vaccine in people over 65 years of age," the statement said.

The United Kingdom, whose regulator approved the Oxford/AstraZeneca vaccine nearly a month ago, has been administering doses to people older than 65.