Mr. Shahin Dadkhah a Diplomate and member of the Negotiating Team of President Hassan Rohani is detained in Evin Prison by " Sepah Intelligence" !?

According to a report, on Wednesday Feb 19 at noon time Doctor Shahin Dadkhah a member of the nuclear energy negotiating team of president Hassan Rohani is arrested and detained in a solitary confinement ward of 2-A in Evin prison by " Sepah Intelligence".
There are no news on the reason for his arrest but it is said that his English articles abroad may be the possible reason for his arrest .
Link:
http://farsi.alarabiya.net/fa/iran/2014/02/20