LOUISVILLE, Ky. (WDRB) -- Federal agents say they found $17.5 million in a box spring in a Massachusetts apartment.

The agents seized the money earlier this month while investigating a massive internet phone service pyramid scheme.

The case goes back to 2014, when investigators searched TelexFree Headquarters in Massachusetts.

Carlos Wanzeler and his co-founder James Merrill pleaded guilty last October.

Agents seized the cash by following a man suspected of being a carrier for Wanzeler's nephew.

Police say millions more dollars are likely hidden in the Boston area.

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