Updated:
About 1,800 police officers were deployed to the Melbourne Convention Centre where the Land Forces International Land Defence Exposition is being held from Wednesday to Friday.
About 1,800 police officers were deployed to the Melbourne Convention Centre where the Land Forces International Land Defence Exposition is being held from Wednesday to Friday.
Witnesses reported protesters throwing rocks, dung and tomatoes at police, including those equipped with shields and riot gear.
Police were seen using pepper spray on some protesters and detaining others.
