Study of kaonic final states in $\pi^{-}p$ at 190 GeV

We discuss the status of analyses of data recorded in the 2008 and 2009 runs of the COMPASS experiment at CERN with sepcific focus on final states with $K^0_S K^0_S \pi^-$ and $K^+K^-\pi^-$ produced in $\pi^-(190\,\textrm{GeV})p$ scattering. The interest in such final states is motivated by a summary of some of the relevant literature. We also show first results from the analysis of diffractively produced $K\bar K\pi$ states. Two prominent three-body structures, one around 1.8 GeV, the other at 2.2 GeV decaying via known $K\bar K$ and $K\pi$ states are seen.