1.   Kidnapping victim Tiu had been held since November, when gunmen wearing ski masks barged into her home and dragged her to waiting speedboats.

2.   They diverted the vessel to a Chinese island in the Pearl River estuary and fled on a waiting speedboat.

3.   They were then ordered to provide a human shield between the robbers and police while the robbers fled to a waiting speedboat, it said.

4.   The gang then fled towards China in a waiting speedboat.