Rio De Janeiro, Ramadan 29, 1437, July 04, 2016, SPA -- A new pollution problem has surfaced in Guanabara Bay, the venue for sailing in the Rio de Janeiro Olympics, AP reported. Sailors complained Monday about an oil slick that turned white boats brown with crews in town practicing for the Olympics, which open in a month. Finnish sailor Camilla Cedercreutz says "we've never seen anything like this. It was all over the place. There was no way you could avoid it." Rio organizing committee officials say the venue is safe. -- SPA 00:34 LOCAL TIME 21:34 GMT www.spa.gov.sa/w