A peaceful protest by the students of May 19 University in Samsun was crashed, first, by private security officers, and then the police on Friday, May 4.
The students protested the visit of the Minister for Youth and Sports, Suat Kılıç, by holding signs that read "AKP get out! Universities are ours!" They also wanted to walk through the campus. Their walk was crashed by the private security personnel of the campus. As a result of the ensuing tension, special forces were called in. The police ended up arresting 20 students from among the protesters. The minister arrived 15 minutes after the incident.
You can read the full report in Turkish on Radikal.