Earlier in the day two armed men entered an office of Turkish ruling AK party in Istanbul, local media report.
This happened just a day after a hostage drama has ended in Turkey with death of Mehmet Selim Kiraz, an Istanbul prosecutor, who investigated the death of a teenager hit on the head by police during anti-government protests in 2013.
The gunmen did not take any hostages but made everybody inside leave the building.
Police cordoned off the area as the gunmen broke a window and hung out a Turkish flag, while also shouting anti-government slogans, according to earlier reports.
Turkish special forces have entered the office of ruling AK Party and detained two gunmen.