  New results from the NA48 experiment on kaon and hyperon decays relevant to
|V_us| are reported here. For charged kaons we present measurements of BR(K+-
-> pi0 e+- nu) and BR(K+- -> pi0 mu+- nu). On neutral kaon decays we report the
measurements of BR(K_L -> pi+ pi-) and of K_L -> pi+- mu-+ nu form factors
slopes. For hyperons we present results on the BR(Xi0 -> Sigma+ e- nu_e).
