Two law enforcement officials described the case to The Associated Press on Tuesday. They spoke on condition of anonymity because the charges have not officially been made public.
The arrests come amid speculation that the Bronx prosecutor is close to bringing charges in a ticket fixing case that could result in about a dozen officers' arrests.
Those arrested in the current case also include three former NYPD officers, a corrections officer from New Jersey and three civilians.
They're accused of involvement in a ring that was trying to traffic automatic rifles, handguns, stolen cigarettes and slot machines.
Authorities were expected to discuss the case further at a Manhattan news conference.