The incident occurred around 11.30 am this morning when the 65-year-old supervisor, Yu, was driving three female guards to their posts at the facility on a golf cart.

As the cart was making a turn near a gate, it suspectedly drove over some rocks and lost control. The cart then crashed into the fence railing, and the female guard named Wong, 65, in the front seat, was thrown out of the vehicle.

Her head landed first, and she immediately fell into a coma; her clothes were soon stained by blood too.

Meanwhile, Yu and two other guards named Yeung and Pang – both aged 52 – sustained injuries to their forehead, limbs, back, and jaw.

Paramedics arrived and rushed Wong to the Prince of Wales Hospital.

Yu, Yeung, and Pang were sent to Prince of Wales Hospital and North District Hospital in a conscious state, respectively.

After preliminary investigations, police listed the case as an industrial accident. Officers are still investigating the cause of the accident.

According to records, the construction of the makeshift hospital in the Lok Ma Chau Loop is supported by the Central Government.

It has never commenced service since it was handed over to the SAR government at the end of last year.