Police officers were called to the University of Hong Kong on Sunday.Photo: UndergradPolice called after University of Hong Kong students put posters up on campus commemorating Xinjiang fire victims- Police receive call from HKU security staff members at around 6pm reporting they found two ‘suspicious’ people putting up posters near university’s railway station- Ten people died in fire that broke out in Urumqi last Thursday, triggering rare protests in mainland China fuelled by suspicion Covid measures delayed firefightersPolice officers were called to the University of Hong Kong on Sunday.Photo: Undergrad"