Commuters used a water hose to fight back against masked thugs in white shirts who attacked them at a Hong Kong station on Sunday (July 21).<br /><br />In the shocking clip filmed by a local citizen, first responders arrive at Yuen Long Station to rescue a young woman injured by thugs wielding batons.<br /><br />The large gang of assailants attacked people who earlier had taken part in an anti-extradition bill protest in downtown Hong Kong in black T-shirts - as well as commuters caught up in the melee - at the station's ticket gates.<br /><br />A man in a white T-shirt holds a board saying "Protect Yuen Long! Protect our home!" <br /><br />In the video, one man with a stick rushes in and starts striking people near the ticket gate, including a woman in a yellow high-vis jacket who falls to the ground, felled by several blows. <br /><br />A man can be heard saying in his native Cantonese: "You even hit a journalist! Are you mad?"<br /><br />Another woman in a white dress also falls to the ground in the melee.<br /><br />To protect themselves, people on the filmer's side of the ticket gate hold up umbrellas as projectiles are thrown in their direction and spray water from a hose and a fire extinguisher in the direction of the white-shirted mob. <br /><br />The video comes to an abrupt end when the white-shirted mob appear to be about to rush the group of protesters and the filmer flees. The filmer escaped injury.<br /><br />According to reports, the fight lasted for around two hours. Forty-five people were sent to hospital for their injuries. <br /><br />Earlier in the day more than 100,000 had marched through Hong Kong demanding greater democracy.