Police deployed tear gas to disperse students protesting governmental business reforms in Athens on Thursday.
Clashes occurred between police and protesters who had marched on the Hellenic Parliament.
Greek Prime Minister Kyriakos Mitsotakis is reportedly introducing the changes to stimulate investments helping the Greek economy emerge from a long stagnation period.
Students and unions oppose the measures, given that the new laws would affect workers' rights and affect state universities diplomas compared to the private schools' degrees.
A similar protest took place in the northern Greek port city of Thessaloniki.