Three Saudi diplomats kidnapped by the Houthi tribe in Yemen recently have been released, Ali Bin Muhammad Al-Hamdan, Saudi Ambassador in Yemen, said Sunday. All the three are keeping good health, the ambassador told Okaz/Saudi Gazette over telephone. The diplomats were released without any demands from the kidnappers, he said. The Saudi Embassy in Yemen exerted great efforts to secure the release of the three Saudis, the ambassador said. __