Electroweak penguin B decays at Belle.

We summarise the most recent results of the Belle experiment about flavour changing neutral current (FCNC) radiative and (semi-) leptonic B decays. In particular, we report about the first observation of the decays B → K*ℓ+ℓ-, B → ØØKγ, the inclusive B → Xsℓ+ℓ-. We also report about searches for B → ℓ+ℓ- decay and for CP asymmetries in B → K*γ. [ABSTRACT FROM AUTHOR]