The İslamic party has also tried to organize a mass demonstration but they couldnot, because simply the government announced it illegal and asked them not to do! Islamic opposition is difficult nowadays in Turkey, because the biggest branch of the Islamic current is already the political power itself...
Here is the link of today action in Ankara, march to the Parliament.
You see on the ground written calls to every indivudual MP asking "do you think to do anything against the violation of the constitution etc." A representative group had a talk to the chairperson of the two opposition parties, social democrat CHP and Kurdish party BDP.
The same news was on Sana, the official news agency of Syria:
this is from Iran:
Arrestations reported in the text are from another action organized by a friendly party, ÖDP. This party makes part of the European Left Party but diverges from the main body as to her anti-imperialistic positions...
and the last one from KKE: