Three of five Libyans charged in connection with a plot to bomb a U.S. officers club in Ankara, Turkey, are protected by diplomatic immunity and cannot be prosecuted, a Turkish state security court ruled. The decision came in the trial of two other Libyans, who were arrested April 18 near the officers club after they threw away a bag containing Soviet-made hand grenades. A verdict in their trial is expected today. Two of the Libyans covered by diplomatic immunity have reportedly left Turkey. The third diplomat, Ali Mansour Zayyani, who serves as the Libyan consul in Istanbul, is still in Turkey.