NANJING, Feb. 23 (Xinhua) – Four people were killed after a building fire broke out Friday morning in the city of Nanjing, capital of east China's Jiangsu Province.

The fire broke out in a residential building in the Yuhuatai District at around 4:39 a.m., according to the local fire rescue team.

The fire has been put out at around 6:00 a.m. and rescue efforts were concluded.

The cause of the accident is currently under investigation.