CAMPO, Calif. (FOX 5/KUSI) -- Eight people were hospitalized Wednesday for carbon monoxide poisoning in Campo, authorities said. Cal Fire San Diego received a call around 11:10 a.m. from the 1700 block of North Campo Truck Trail on the Campo Reservation. Authorities say a gas-powered generator, that was running for 48 hours and placed too close to the home, slowly pushed carbon monoxide into the home. Three adults and five children were taken to the hospital, where they are in unknown condition, first responders said. Can San Diegans who lost power get reimbursed for spoiled groceries? Power outages in the area prompted public safety power shutoffs due to a Red Flag Warning, which has since expired. Carbon monoxide is a colorless, practically odorless, and tasteless gas or liquid. According to the United States Environmental Protection Agency, carbon monoxide can result from unvented kerosene and gas space heaters; leaking chimneys and furnaces; back-drafting from furnaces, gas water heaters, wood stoves, and fireplaces; gas stoves; generators and other gasoline-powered equipment; automobile exhaust from attached garages; and tobacco smoke. Most electrical companies advise to keep generators at least 20 feet away from any building.