The body of a 64-year-old woman was found on Friday at the bottom of an elevator shaft in the building she lived in at Sheung Shui, in Hong Kong’s New Territories.

It is believed that the woman, who lived on the seventh floor of Paris Court at Sheung Shui Town Center on Chi Cheong Road, had gotten her leg caught between the outer doors of the elevator when its cabin suddenly went up, causing her to fall down the shaft, Sing Tao Daily reported.

The victim’s body was discovered when a repairman went to inspect the elevator at 3pm. She was pronounced dead at the scene.

Police found her belongings including a wallet and a mobile phone in the elevator lobby on the seventh floor.

Surveillance-camera footage showed that after the woman put a leg into the elevator, its doors closed and her leg was trapped, causing her to dangle upside down when the elevator moved upward.

A few seconds later, she fell down the shaft.

Alfred Sit, director of the Hong Kong Electrical and Mechanical Services Department, said it appeared that “abnormal movement” of the elevator cabin had caused the accident. The department will investigate 90 elevators that are of the same model across the New Territories in the next two weeks, Oriental Daily reported.

A female resident of the building told Ta Kung Pao that her domestic worker had experienced a similar incident with the same elevator on the same day.

The worker narrowly escaped from the elevator when its doors suddenly closed and moved up while she was getting out. Half of her body was hit by the door and she suffered abrasions on her back and hip.

Half of the 66,291 elevators in Hong Kong have been operating for at least 21 years, figures from Electrical and Mechanical Services Department showed. Old elevators are mostly found in Central and Western district on Hong Kong Island and in Yau Ma Tei, Mong Kok and Tsim Sha Tsui in Kowloon, Apple Daily reported.