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. Last Updated: 07/27/2016

4 Arrested in City Gangland-Style Killing

Moscow police have arrested four men in connection with Wednesday's shootings on Ulitsa Profsoyuznaya in Moscow's southwestern suburbs, Interfax reported Thursday.

Six bullet-riddled bodies were found on the grounds of the Naval Space Communications Center at approximately 4 p.m. Wednesday. Numerous cartridges and shell casings were found at the scene, Interfax reported.

It has since been established that two of the victims were from Azerbaijan and three from Armenia. All were under the age of 35. The identity of the sixth victim is not yet known.

Few details were available on the four suspects, all Moscow residents. The youngest is 20, according to televised news reports, and the oldest is 46. Investigators said they uncovered weapons in the apartment where the four men were arrested Wednesday night, according to NTV television. Police are currently preparing to arrest another suspect.

An official at the Yasenovo police precinct would not say what led them to the suspects. "We work fast," he said.

NTV reported Thursday that the suspects belong to Slavic mafia gangs who are waging war against their Caucasian counterparts.

Although other officials described the shooting as a mafia hit, the Yasenevo police official said Thursday: "We cannot say at this time whether the murders were related to organized crime or whether the victims were part of a criminal group."

Officials at the Moscow City Prosecutor's office, which is conducting an investigation, could not be reached for comment.