An explosion occurred at a five-story apartment building in China's Harbin, the capital of Heilongjiang province, with no immediate reports of casualties, according to Chinese state media on Thursday morning.

An explosion has occurred at an apartment building in Harbin, a city in northeastern China, state media reported. Casualties are unknown.

A suspected gas explosion at a residential building in China's northeastern city of Harbin killed one person and injured three as it tore off a balcony, state media said on Thursday, while scattering rubble in the street.

An explosion has occurred at an apartment building in Harbin, a city in northeastern China, state media reported. Casualties are unknown. Xinhua news agency said the explosion occurred at roughly 7 a.