A “hacktivist” group Anonymous Anon Verdict announced in a video Sunday that it had released personal information of 52 Cincinnati Police Department employees, from Chief Eliot Isaac to rank-and-file officers.

Cincinnati police Lt. Steve Saunders said that the department is investigating the situation to assess the risk to officers, establish if there has been a breach of their systems and find who is responsible. He said that it appears all the information could have been obtained through means available to the general public on the Internet like social media and public records sources.

In a 3-minute video posted to YouTube, the group states the so-called data dump was in response to the recent death of Paul Gaston, who was shot and killed by Cincinnati police officers on Wednesday.

The personal data, including names, ages, street addresses, email addresses and social media accounts of the officers, was posted in two links provided with the video. The names and addresses of many of the officers’ family members were also published. However, the link posted Monday was not working. A backup link was later shared on social media.

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