The intensities of the K-allowed gamma transitions from neutron resona
nce states to low-lying states in Er-168 are analyzed. The quasipartic
le selection rule is taken into account. It is shown that the K-allowe
d gamma transitions satisfying the quasiparticle selection rule are mu
ch faster than the K-forbidden transitions. It may indicate that the K
mixing in the neutron resonance region is incomplete.