GLENDALE, Calif.  Law enforcement officials cracked down Wednesday on a growing Southern California criminal organization with extensive international ties, arresting 74 members and associates of the Armenian Power crime group.

The United States attorney’s office said that more than 100 people affiliated with the Armenian Power organization  some of them still at large  had been charged with narcotics trafficking and kidnapping as well as sophisticated white-collar crimes like a bank fraud scheme that cost victims at least $10 million. Nearly 100 of those charged were in Southern California, with the rest in Miami and Denver.

In a region that has been plagued by gang activity, the Armenian Power syndicate evolved over the last few decades from a traditional street gang, based around East Hollywood, into a crime organization with ties to local Mexican gangs as well as international organized crime groups in Eastern Europe and Russia.

Steven M. Martinez, assistant director in charge of the F.B.I.’s Los Angeles field office, said the technical sophistication of Armenian Power’s members set the organization apart from other gangs in the region, and helped it forge “thieves-in-law” relationships with other crime groups.