[en] Results are presented from the study of multikaon final states in the reactions π^-p→K⁰K^+-πminus-or-plusX, K⁰K⁺KX at 50 and 100 GeV/c. Here X is semi-inclusive, because a specific forward topology and an interaction registering in the counters sourrounding the target are required. The D(1285) meson is seen in the dr mode, while the E(1420) meson is observed in both the dr and the KK modes. In addition, there are two possible enhancements in the three kaon final state. The first (Mapprox.1840 MeV) is associated with the K⁰f mode and is consistent with being the charmed D⁰. The second, a K state (M = 2003 +- 14 MeV, G = 87 +- 43 MeV), decays into KA₂