The mothers of soldiers killed in Armenia's army and the Army in Fact action group were to hold a regular action in front of the Armenian government, Tert.am reported.
They demand proper investigation into soldiers' murders.
However, the police did not allow the protesters to hold their action where they had planned and used violence against them. The protesters expressed their opinion on police violence, one of the active participants, Izabella Sargsyan, said.
"The police used violence against Lala Aslikyan, a member of the Army in Fact action Group, and transported her to the police department.
"A number of protesters gathered there and demanded that Ms. Aslikyan be released. One more incident took place there: Vice-Chief of the police department Araik Petrosyan tried to run over the protesters by his car and hit the Parliament member Zaruhi Postanjyan.
Lala Aslikyan's lawyer Robert Revazyan was not allowed to enter the police department. About 20 policemen near the police department, and another 30 at some distance, prevented the protesters from approaching the building, said Izabella Sargsyan.