Hyundai Motor on Friday restarted operations at four plants in South Korea after production was suspended for half a day due to a shortage of components, with a key supplier forced to halt deliveries due to an outbreak of COVID-19 infections.

Hyundai suspended production at four of its five assembly lines in Ulsan for half a day on Thursday while health authorities carried out checks and implemented sanitation measures at a parts plant owned by affiliate Hyundai Mobis Company.

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Like in many countries in East Asia, South Korea has been hit by a new surge of infections in the last month, leading to renewed social restrictions and other preventative measures. There are fears that the current wave of infections could be the country’s worst yet.

The automaker has also been forced to temporarily halt production at several assembly plants this year because of the global shortage of semiconductors, affecting output of some of its latest models.

The company also suspended production in India for five days at the end of last month after a number of workers tested positive for the virus.

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