Rio de Janeiro, 25 (Agência Brasil - ABr) - Technicians of the Rio de Janeiro Port Authority flew over the Guanabara Bay in a helicopter on Sunday to investigate an oil spill that appeared. The oil supposedly leaked from a cruise ship, called the Caronia, which is anchored at Pier no. 1, near the Maua Square in the center of Rio. The leak occurred in the early morning hours of Sunday. (MW)