Federal charges have been filed against 19 members of an alleged drug ring who were arrested Wednesday in three different cities. Based in Milwaukee, investigators say the ring operated in Chicago and Burlington, Iowa, too. More than 250 federal, state and local law enforcement officers took part in the round-up. They seized about one-and-one-half kilograms of cocaine, heroin, more than 20 guns, eight vehicles and an undetermined amount of cash. U-S Attorney Greg Haanstad says the contraband was found while federal search warrants were being executed. The suspects are charged with taking part in a drug conspiracy, a bankruptcy fraud operation and laundering money.