A police operation conducted by riot units ended a sit-in at the administrative offices of the Aristotle University in Thessaloniki, northern Greece, in the early hours of Friday. Police forces detained 11 people during the raid.
Those arrested were later released and ordered to stand trial on Monday.
The sit-in, which lasted several days, had been conducted by municipal contract workers over unpaid wages. Those arrested were set to face a prosecutor on Friday.
On Thursday, university professors, staff and students aided a private cleaning services crew working pro bono to clear up piles of garbage that had accumulated outside the educational facility's premises over the course of nine weeks.