Complex sentence: The hijackers used aluminium canes with sharpened tips to attack the members of the crew at which point the police officers and civilians on board subdued the hijackers, all of whom were of Uyghur ethnicity.
Split into simpler sentences: The hijackers used aluminium canes with sharpened tips to attack the members of the crew. The police officers and civilians on board subdued the hijackers, all of whom were of Uyghur ethnicity.