Police in Yerevan blocked all the main streets in the city center.
The building of the opposition news agency and the residence of the former presidential candidate Levon Ter-Petrosyan were cordoned off. He himself is under house arrest.
On Saturday morning, the police dispersed the manifestants who have been protesting against the official results of the presidential election for 10 days. It is reported that in clashes with the police several opposition supporters were injured.
Law enforcement agencies of Armenia do not give any comments about what is happening.