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Squid Game has become Netflix's most popular series of all time with 111 million people tuning in in the first 28 days.

The South Korean show, which sees people in debt competing in a series of challenges in a bid to win a prize fund of millions, premiered in September with nine episodes.

Squid Game is now top of the charts in 94 countries worldwide, according to CNN.

Its success means it has overtaken period drama Bridgerton - which had 82 million households watching in its first month - to be the streaming service's biggest hit.

"When we first started investing in Korean series and films in 2015, we knew we wanted to make world-class stories for the core K-content fans across Asia and the world," Minyoung Kim, Netflix's vice president of content for Korea, South East Asia, Australia and New Zealand, told CNN. "Today, Squid Game has broken through beyond our wildest dreams."

Bosses are already discussing a second series of Squid Game, which features the contestants competing in children's playground games but facing death if they lose.