German Foreign Ministry on Wednesday said it had summoned Turkey's ambassador in Berlin to protest the pre-trial detention of six human rights activists, particularly that of German citizen Peter Steudtner.
"The Turkish government needs to immediately and directly hear the German government's outrage and incomprehension as well as its crystal-clear expectations in the case of Peter Steudtner and, this time, without diplomatic niceties," Foreign Ministry spokesman Martin Schäfer said according to Deutsche Welle on Wednesday.
Schäfer said German Foreign Minister Sigmar Gabriel had interrupted his summer vacation to attend government consultations over the Turkish court's decision to jail Steudtner, a human rights trainer who was taken into custody earlier this month. 
German Chancellor Angela Merkel condemned the decision to detain Steudtner ahead of his trial, saying it was "absolutely unjustified".

Source: Mena