Subway operator insists stairs were working and says they didn't reverse

SHENZHEN, Guangdong - Just five days after a boy was killed and 30 people were injured in a Beijing subway crush caused by an escalator malfunction, at least two passengers were hurt in a similar incident at Shenzhen Metro Line 4's exit on Sunday night.

"I fell backwards from about 10 steps' height," said 50-year-old Zeng from a hospital wheelchair, as she described what happened to the French-made CNIM escalator.