FedEx and UPS have disclosed they are targets of a federal criminal investigation related to their dealings with online pharmacies, which are at the center of an international crackdown on prescription drug abuse.

The shipping companies made the disclosures in regulatory filings over the last several weeks. FedEx spokesman Patrick Fitzgerald confirmed the probe in a prepared statement and a phone interview Thursday.

The investigation of the country’s two largest shippers stems from a blitz against online pharmacies that was launched in 2005. Since then, dozens of arrests have been made, thousands of websites shuttered and tens of millions of dollars and pills seized worldwide as investigators continue to broaden the probe beyond the operators.

Last year, Google Inc. agreed to pay $500 million to settle allegations by the Justice Department that it profited from ads for illegal online pharmacies.

Read more: http://www.lasvegassun.com/news/2012/nov/18/us-online-pharmacies-shippers-investigated/