SEATTLE, Wa. -- Federal agents said they caught a key suspect in an identity theft ring that stretched from Seattle to the Portland-area and targeted health club customers.

Agents arrested the so-called "leader" of the group, Gabriel Jang. They searched Jang's house near Seattle Thursday.

Federal prosecutors said the group would steal credit cards from gym locker rooms in Washington and Oregon as well as Colorado and Georgia. The suspects then altered the credit cards and made fake identification cards. Prosecutors called it an elaborate set-up.

"They would take those credit cards right out to the car where they would have a sort of mobile counterfeiting lab in the back seat of their cars. They used computers and printing equipment in the cars to create counterfeit ID plus documents using their own photos and the names on the stolen credit cards," said Assistant U.S. Attorney Kathryn Warma.

The group would then buy i-pods and computers and sell them on E-Bay. Authorities said the group netted about $3 million.

Prosecutors believed Jang had several associates. At this point, only one of his alleged associates, Billy Britt has been charged. They said more arrests and charges were pending.