South Korea’s prime minister has assured there were no safety issues with AstraZeneca’s coronavirus vaccine, as the government held final drills ahead of next week’s scheduled rollout of the first vaccines, Reuters reported.

“The vaccine was granted approval in around 50 countries and recently got emergency approval from the World Health Organisation,” said Prime Minister Chung Sye-kyun. “I repeat, there is no issue with safety.”

The authorities have said they will not use the British vaccine on people aged 65 and older until more efficacy data becomes available, reversing an earlier decision.