Police officers investigating last week's MIRROR concert accident were seen taking away a steel cable after visiting the Hong Kong Coliseum on Tuesday.

Officials from the Government Laboratory also assisted with the probe.

Two dancers were injured when a giant video screen crashed down on performers on Thursday.

The Hospital Authority said Lee Kai-yin, who was struck in the head, remains in intensive care, but his vital signs are stable.

Meanwhile, the AsiaWorld-Expo said it will not allow event organisers to use mechanical devices that swing, rotate or carry people after the government introduced similar short-term rules at its venues in the wake of the incident.