Studies of multibody charmless B decays at LHCb

Recent results from studies of charmless $B$ meson decays with the LHCb detector are presented. $CP$ asymmetries in $B^{\pm} \to K^{\pm}h^{+}h^{-}$ decays have been measured and the first observation of $CP$ asymmetry in inclusive three body charmless $B$ meson decays is found in the $B^{\pm} \to p\bar{p}h^{\pm}$ decays have been measured, and we make the first observation of the $B^+ \to \bar{\Delta} (1520)p$ decay. Branching fractions of $B^0_{(s)} \to K^0_s h^{\pm}h^{\mp}$´ decays have been studied, including the first observation of the $B^0_s \to K^0_sK^+K^-$ is observed and so a limit on this branching fraction is measured. Finally, the first preliminary results of the search for the $\Delta^0_b \to \Delta\eta$´ decay are presented. No significant signal is observed for this decay, and an upper limit is placed on the branching fraction.