Chevron is trying to bankrupt the lawyer that defended Ecuador's Indigenous communities against the oil company in a billion dollar case for polluting the country's Amazon rainforest for years, according to CRS News and based on legal documents.

Attorney Steven Donziger said Chevron attempted to harass him and collect US$33 million through lawsuits, demanding several fees for alleged "illegal and unethical" work.

"The bottom line is that Chevron CEO John Watson is furious that the Indigenous groups his company poisoned beat him in court, so he ordered this retaliation against me in the United States given that I am one of their lawyers," Donziger said to CRS.

"I'm a surrogate for attacks against thousands of vulnerable Indigenous people in Ecuador whom Chevron refuses to compensate for causing life-threatening harm, despite court orders that it do so," he explained.