Published: Dec 31, 2010 4:39 PM EST
Updated: Dec 31, 2010 1:42 PM EST

TAMPA, Fla. (AP) - Tampa police say they have busted one of the city's largest "pill mill" operations.

Police said Thursday they believe doctors at the First Medical Group sold more than 2 million pills of the painkiller oxycodone and other narcotics to people who flocked there from across the country. They say at least five customers later died from overdoses.

Police Chief Jane Castor said the operation was "creating and feeding drug habits."

An investigation led to the closing of the clinic and the arrests of its owners, employees and a doctor.

Police said customers came from 30 states to get pills and many later sold them on the streets.

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