The World Health Organization (WHO) has urged African countries not to destroy Covid-19 vaccines that may have passed their expiry date.

Countries have been told to keep hold of them and wait for further guidance.

The appeal comes after Malawi and South Sudan said they would destroy more than 70,000 doses of the Oxford-AstraZeneca jab because they expired in mid-April.

But the Africa Centres for Disease Control (Africa CDC) said it had been assured the doses were safe to use.