While attempting to control protests, Brussels police Chief Commissioner Pierre Vandersmissen was blindsided by a protestor and knocked unconscious.
Tuesday, police were attempting to regain control over the approximately 60,000 demonstrators when a man in a red shirt punched Vandersmissen in the head according to the BBC.
While out front, leading the riot police,Vandersmissen sprayed pepper spray on various groups of protesters demonstrating against government cuts. According to Politico, the protesters did not agree with the abolition of the 38-hour work week and a law that allows politicians to retire at age 55.
In total, two police officers and 20 protesters were injured.
According to the BBC, the perpetrator of the attack was wearing the colors of the Socialist ABVV union, but the union claims the man was not a member. Police are still looking for the attacker.
Vandersmissen was taken to the hospital for treatment.