Rio De Janeiro, Jumada II 17, 1436, Apr 6, 2015, SPA -- A fire that broke out four days ago at a liquid bulk storage facility in the Brazilian port city of Santos is still raging, AP reported. No one has died in the blaze that started early Thursday, sending up thick columns of inky black smoke. The fire department said Monday that more than 100 firefighters are on hand to combat the flames at two storage tanks a facility owned by Ultracargo, one of Brazil's largest liquid bulk storage companies. Fuels, chemicals, vegetable oils, ethanol and corrosive products are stored at the site. Six tanks have gone up in flames since the blaze started, but the fire department says it's succeeded in isolating the last two tanks still in flames. It's not yet known what caused the fire. -- SPA 20:58 LOCAL TIME 17:58 GMT www.spa.gov.sa/w