SYDNEY University will investigate an incident in which Associate Professor Jake Lynch was filmed waving a five dollar bill at an elderly Jewish woman enraged by anti-Israel protesters at a lecture.

Dr Lynch — Director of the Centre for Peace and ­Conflict Studies — claims he was threatening to sue the woman after she kicked him “in the meat and two veg”.

Colonel Richard Kemp, a retired British military officer, was delivering a lecture on the ethics of armed conflict at the university on Wednesday when several students stormed the room and began chanting anti-Israel slogans.

Within minutes of their entry, Associate Professor Lynch began filming the fracas.

He was involved in a ­confrontation with a woman, believed to be 75 years old, with the two taunting each other.

Mr Lynch then reached into his breast pocket, pulled out a $5 note and began waving it in the woman’s face.

Dr Lynch said his actions were intended to represent a threat to sue the woman.

In a video viewed by The Saturday Telegraph, Dr Lynch can be seen arguing with the woman before she throws out her right arm at him.

Colonel Kemp, who witnessed the incident, said in his opinion the actions of associate ­professor Lynch suggested an anti-Jewish prejudice.

But Dr Lynch said: “Any suggestion that I am in any way anti-Semitic is incorrect and unfounded.”

A Sydney University spokeswoman said in a ­statement last night: “The ­University is deeply concerned about events surrounding a protest on campus and has ­commenced an investigation into the incidents.”