German police say they had foiled an apparent blackmail plot concerning a threat to blow up the stadium of Borussia Dortmund.
A 25-year-old German man had buried explosives and weapons, including three bombs, in the immediate vicinity of Signal Iduna Park, according to the BKA Federal Office of Criminal Investigation in Wiesbaden.
The packages were found and defused. Three more bombs were subsequently found at the man’s home in Krefeld to the west of Dortmund. He was arrested in Cologne on Tuesday.
“We can confirm there are investigations in North Rhine-Westphalia in connection with suspected explosive objects,” said a BKA spokeswoman.
A BKA said that police had been monitoring the suspect since an anonymous source had established contact with the German embassy in Islamabad by email, offering information about two planned attacks in Germany.
However, it appears that this email was sent by the suspect and it soon became evident that the warnings could be part of a blackmail attempt.
On Tuesday, the man was arrested in Cologne. He has admitted being the anonymous source. He also admitted to having placed three explosives near the stadium and to having three more at his home.
A search of his home revealed further explosive devices and extensive written material on making chemical explosives.
“The possible connection to an attempted extortion against a business in 2010 has been confirmed during the search,” the BKA statement said.