North Korea's leader Kim Jong-un has rebuked officials and called for a prompt distribution of medicines amid an Covid-19 outbreak in the country which has already led to 50 deaths.

The country, which has reportedly not administered a single vaccine, recorded eight deaths and some 392,920 people with symptoms of fever on Sunday, state-run news agency KCNA reported on Monday.

This takes the total number of possible infections in the country to 1.21 million amid a lack of testing since the outbreak linked to the Omicron variant broke out in late April.