Two Russian women reported symptoms after attending a conference in Berlin. State security has taken over the investigation into the incident.

The two women are believed to have been poisoned. The Russian government has denied any involvement in the incident, which occurred in the middle of a conference. The incident is being investigated by the State Criminal Police Office (SCCP) and the German Federal Prosecutor's Office (Bundeskriminalamt) The incident occurred at the end of April, but the cause of the symptoms is still unknown.