Korean Air Lines has warned that the coronavirus outbreak could threaten its survival after more than half of the world restricted passengers entering from South Korea, Reuters reported.

Korean Air's president Woo Kee-hong said more than 80 per cent of South Korea's biggest carrier's international capacity had been cut as a result of travel restrictions globally, compared with an 18pc cut made during the 1997-1998 Asian financial crisis.

"We can easily imagine the severity of the crisis we are facing in comparison. And what is more daunting is that the situation can get worse at any time and we cannot even predict how long it will last," Woo said in a memo to employees.

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