A building that collapsed in Fenghua, Zhejiang province, on Friday morning killing a woman, was registered as "unsafe" in December but no remedial measures were taken.

The woman was among seven people trapped after the five-story residential building crumbled to the ground at 8:45 am. All were pulled from the debris by the evening, but Chen Yuexiang, 68, died at a hospital.

Her 21-year-old granddaughter Shen Dailu survived after being trapped for about nine hours under a concrete slab. Shen and five other survivors were still receiving hospital treatment on Friday night.