Goma, Congo, Dec 1, SPA -- U.N. observers encountered about 100Rwandan troops in eastern Congo, a U.N. official said Wednesday, marking the first confirmed sighting since Rwanda threatened to send in its forces against Rwanda Hutu rebels sheltering here. The Rwandan forces withdrew toward Rwanda after Tuesday'sencounter, said M'hand Ladgouzi, head of the U.N. missionat Goma. He spoke at a news conference in Goma, the largestcity of the east.--SPA1316 Local Time 1016 GMT www.spa.gov.sa/221127