Masked men destroy Hong Kong Lennon wall at Australia's University of Queensland

Campus steps up security around protest site after four vandals caught on camera

The University of Queensland has promised to take action after a pro-Hong Kong Lennon wall on its campus was torn down on Monday night by four masked men.

The colourful protest wall - similar to those around Hong Kong and the rest of the world - had attracted hundreds of notes calling for democracy and solidarity with Hong Kong, and opposing the totalitarianism of the Chinese government.