Six members of a group that shipped drugs from Tucson to the East Coast and laundered about $1.6 million in drug proceeds have been arrested, the state Attorney General’s Office said Thursday.

Two members of the group are still at large, having fled from authorities on Tuesday night, according to a news release from Attorney General Tom Horne.

The group was involved in laundering of drug trafficking proceeds through various bank accounts and a local casino, the office said. From June 2010 through May 2013, the group laundered about $1.6 million, the news release stated.

The leader of the group was identified as Maria Yvette Sanchez-Arvizu, who personally laundered about $750,000, the office said .

Others arrested were: Armando Roble Urrea, Concepcion Suarez-Montijo, Gladis Celaya-Reuelas, Noemi Suarez-Montijo and Frank Babcock.

Two members of the group have not been arrested: Luis Villagrana and Julio Villagrana. Anyone who knows where they are can call 88-CRIME.

The investigation discovered marijuana was being shipped by the group to the East Coast. In one incident, about 84 pounds of marijuana was hidden in an air compressor and shipped commercially to New York. Police intercepted the load at the home of the recipient, the news release said.

State officials have seized bank accounts associated with those arrested and have also seized a house in Tucson that was purchased with drug proceeds, the release said.