Germany's domestic intelligence agency (BfV) discovered an Islamist working within its own ranks.

Using a pseudonym, he gave away secret information, allegedly gathering information on the times and details of raids against extremists, DW reported.

The suspect, a 51-year-old German, planned to bomb the BfV headquarters in Cologne. During the interrogation, after being taken into custody, he said that such an attack against “unbelievers” would be “for Allah's purpose”. However, he hasn't managed to start preparing a terrorist attack and another agent of BfV which was in contact with the suspect in the chat helped to detain him.

The representative of BfV confirmed the fact of detention noting that there are no proofs of concrete danger for the agency or its staff. The man had been hired to monitor growing extremism in Germany. During the preliminary interviews and training he did not stand out. At the moment, prosecutors have issued an arrest warrant for him.

Later, the prosecutor Ralf Herrenbrueck also stated that preliminary data does not confirm that the detainee planned attack using explosives.