LAGOS, Nigeria, October 21, SPA -- Gunmen in speedboats attacked an offshore oil field in the volatile Niger Delta, kidnappingthree foreign workers, a Shell official said Sunday. The men were taken after a three-hour gunfight at the EAfield, operated by Royal Dutch Shell, according to theofficial, who did not want to be named because he was notauthorized to speak to the media. One kidnapped worker wasCroatian; the other nationalities were not immediatelyknown, The Associated Press reported.--SPA www.spa.gov.sa/492012