WASHINGTON  -- A DEA drug bust resulted in the arrest of more than 90 people , more than five million packets of finished designer synthetic drugs seized and more than $36 million in cash confiscated,  the U.S. Drug Enforcement Administration announced today.

Operation Log Jam was conducted by the DEA, ICE along with the IRS, U.S. Postal Inspection Service, the U.S. Customs and Border Protection, the FBI and Food and Drug Administration.

Also state and local law enforcement officials participated in this crackdown that federal officials say is the first-ever nationwide law enforcement   action against the synthetic designer drug industry.

Law enforcement targeted the synthetic designer industry, including retailers, wholesalers, and manufacturers in 109 U.S. cities, according to the DEA officials.

Spokeswoman Barbara Carreno said in an interview that there were seven Southern California cities where the crackdown took place: Los Angeles, Corona, Laguna Niguel, the City of Industry, Rolling Heights and San Juan Capistrano.