Hong Kong’s deadliest fire in years burned through the night, leaving at least 44 people dead and 279 reported missing with rescuers still pulling residents from blazing high-rise apartment buildings into Thursday morning.

Police arrested three men on suspicion of manslaughter in connection with the fire which began Wednesday afternoon in a housing complex in Tai Po district, a suburb in the New Territories.

By Thursday morning local time, the fire was yet to be put out and rescues continued.

Hundreds of residents were evacuated as the fire spread across seven of the eight towers in the Wang Fuk Court complex, as bright flames and smoke shot out of windows.

Forty of the 44 fatalities were declared dead at the scene, officials said.

At least 62 others were injured, many suffering from burn and inhalation injuries.

Authorities said they suspected some materials on the exterior walls of the high-rise buildings did not meet fire resistance standards, as the rapid spread of the fire was unusual.