New York City Mayor Bill de Blasio has launched an investigation after a hack on far-right group the Oath Keepers reportedly revealed it has two active NYPD cops and three New York public officials on its books. 

The investigation takes place after an anonymous hacker shared what they claim are emails and membership data from the extremist militia group, who were present at the storming of the U.S. Capitol on January 6th.

Eighteen Oath Keeper members have since faced charges from the Capitol riot.

The far-right group's records were sent to a transparency nonprofit group known as Distributed Denial of Secret (DDoSecrets), which shares data leaks with journalists and researchers, and posted online Monday.

Three New York City public officials are also part of the leaked membership's logs. They confirmed to WNYC/Gothamist that were previously registered as members of the group but they now claim they are no longer active.  

The two NYPD officers whose names are also listed in the hacked records could not be confirmed as active members and so they remain unidentified.