A racist letter targeting the Filipino American community in American Canyon, Calif., went viral Monday after resident Derek Valencia posted a picture of it on Facebook, reports The Huffington Post. The letter, which claims to be from the California Department of Consumer Affairs Board of Barbering & Cosmetology, is addressed to local resident Maria Aida Ignacio Brandes. The letter targets the entire Filipino American community in the town, calling the population "filthy" and "unwanted." It also targets Brandes' adult daughters for having white spouses to ensure “their half-breed children have ‘straight noses’ in order to be accepted in non-Filipino society.” The police department is investigating the letter. American Canyon in Napa County has a population of 19,454, is 38.9 percent white, 32.9 percent Asian and 7.9 percent black.