A fire at an apartment block in Vietnam’s capital Hanoi has killed 56 people, among them children, and injured 37, police said on Wednesday, CNN reported.

The fire broke out during the night in a nine-story building, home to about 150 residents, according to the official Vietnam News Agency (VNA), which said the blaze was contained by 2 a.m. (3 p.m. ET).

Television images showed firefighters equipped with hoses and ladders at the scene by night, while a column of thick, dark smoke billowed from the building by day.