After burning for about four hours, a No 3 alarm fire that broke out at a waste management facility on an artificial island in Hong Kong was largely extinguished on Monday afternoon, authorities said.

The blaze at the Integrated Waste Management Facilities Phase I on an artificial island off Shek Kwu Chau was largely extinguished at 4:45 pm, according to a Hong Kong Special Administrative Region government statement.

About 930 people self-evacuated to places of safety and one person felt unwell and was sent to Pamela Youde Nethersole Eastern Hospital for treatment, it added.

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Authorities said the fire started at 12:43 pm and was upgraded to a No 3 alarm blaze at 1:24 pm. Firefighters used five jets and mobilized five breathing apparatus teams to contain flames.

They surrounded the fire at 3:47 pm and brought it under control at 4:18 pm before extinguishing the flames at 4:45 pm, authorities added.