The U.S. government filed complaints against a pest control company in Puerto Rico and two businessmen for the illegal use of a toxic pesticide that nearly killed an American family in the neighboring U.S. Virgin Islands.

The Environmental Protection Agency on Tuesday said the businessmen used methyl bromide to fumigate homes and other unauthorized places in several cities across Puerto Rico from 2013 to early 2015. The men were identified as Edwin Andujar Bermudez with Truly Nolen Pest Control of Caguas and Wilson Torres Rivera of Tower & Son Exterminating Corp. in Bayamon. Tower & Son was named in a separate complaint, but not Truly Nolen.