A group of illegal immigrants from South America was indicted by a federal grand jury for allegedly using construction crew disguises, blowtorches and cell phone jammers, among other “sophisticated tactics,” to steal more than $4 million in cash from banks several states, according to federal prosecutors.

The team, comprised primarily of Chilean nationals, targeted more than 29 banks and credit unions across California, Oregon and Washington between May and October, U.S. Attorney Phillip A. Talbert announced.

According to court documents, the group spotted ATMs in “vulnerable locations” then rented nearby short-term vacation properties and used cars they rented on the “black market.”

Officials said nine of the 11 individuals accused were arrested last week, and two others were arrested in Washington on October 30.

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Federal prosecutors said the group of illegal immigrants posed as a construction crew to rob banks. (U.S. Department of Justice)

In one incident, prosecutors said the suspected thieves spotted a business next to a Wells Fargo store in Modesto, Calif., broke in at night and cut a hole in the wall to gain access to the Bank ATMs.

Authorities released photos of the suspected bank robbery bandits dressed as construction workers and wearing hard hats, surgical masks and high-visibility safety vests.

In another incident, prosecutors say, the bandits hit a bank in Fall River Mills, California. They allegedly used blowtorches, saws and other power tools to gain access to the bank and its interior vaults. The suspected bandits were interrupted and fled, leaving some of their tools behind.

Authorities said they found hundreds of pounds of theft tools, disguises, fake ID documents and more than $100,000 in cash at several short-term rental properties in Oregon and Washington.

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Suspected bandits inside a bank during a robbery. (U.S. Department of Justice)

Talbert named illegal immigrants as:

• Alex Moyano Morales, 24, from Chile
• Maite Celis Silva, 26, from Chile
• Erik Osorio Olivarez, 20, from Chile
• Pablo Valdez Rodriguez, 36 years old, Chilean national
• Rosa Bastias Serra, 42, from Chile
• Camilo Sepulveda Guzman, 31, from Peru
• Bassil Dacosta Frias, 34, from Venezuela
• Camilo Alarcon Alarcon, 23, from Chile
• Michelle Parada Munoz, 21, from Chile
• Alvaro Lagos Mieres, 44, from Chile
• Humberto Jimenez Moreno, 45, from Chile

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According to court documents, investigators tracked the crew to several short-term rental properties in Oregon and Washington state, where the FBI executed search warrants and found hundreds of books of Theft tools, disguises, false identity documents and more than $100,000 in cash. (U.S. Department of Justice)

Talbert added that all the defendants are charged with conspiracy to commit bank robbery, while Moyano, Celis, Osorio, Valdez, Bastias, Sepulveda, Lagos and Jimenez are also charged with bank robbery.

Court documents allege the defendants targeted banks and ATMs throughout the Eastern District of California, which included Fresno, Auburn, Merced, Clovis, Modesto, Roseville, Rocklin, Yuba City and Fall River Mills. They also targeted banks and ATMs in Oregon and Washington state. and the Los Angeles area.

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If convicted, Talbert said, the defendants face a maximum statutory penalty of 20 years in prison for bank robbery and five years in prison for conspiracy to commit bank robbery.