The FBI has arrested a Southern California man who officials say falsely claimed to have developed a cure for the coronavirus.

The U.S. Justice Department says in a statement that Keith Lawrence Middlebrook told his 2.4 million Instagram followers that his company would return hundreds of millions of dollars in profit and solicited investments in the company to market the medication.

The statement says Middlebrook claimed he had developed pills to prevent COVID-19 infections and a drug to cure those suffering from the virus.

There are no known cures or vaccinations for the coronavirus. It wasn't known if Middlebrook has an attorney who could comment.