Late on May 22, the words "Vivisection Murderers" were painted, and red paint was thrown at the entrance to the University of Milan's Department of Pharmacological and Biomolecular Sciences.

A short distance away at the Department of Medical Biotechnology and Translational Medicine, paint and a foul-smelling substance was dumped at the entrance. The strong smell prevented researchers from entering the building throughout the morning. Windows on the first floor were also broken. Photos: Corriere Milano