Police have spoken to a woman who was filmed being shoved to the ground in a Hong Kong protest that turned violent at the University of Auckland and are seeking the identities of the others involved.
Meanwhile the university's vice-chancellor Stuart McCutcheon sent an email to all staff and students late on Tuesday urging respect for freedom of speech.
"I have been informed of recent disagreements and disputes on campus between students who have different views of the events in Hong Kong," McCutcheon said in the email.
A video of three Chinese men, believed to be students at the university, clashing with protesters on campus was uploaded on YouTube and shared on social media sites on Monday evening.