The Associated Press has reported that the Metropolitan Washington, D.C. police department has been the victim of a hacking incident for which the Russian-based ransomware group Babuk is claiming responsibility. According to the department, the FBI is investigating the incident.

It is reported that the department’s police operations were not affected. Babuk claims that it stole sensitive data from the department. Some of the department’s data were being leaked on the internet this week, including lists of arrests and persons of interest to the department. Babuk alleges on its dark web site that it has downloaded 250 gigabytes of data from the department.