  In this work we study the interaction of the coupled channels $\Omega \eta$
and $\Xi^* \bar{K}$ within the chiral unitary approach. The systems under
consideration have total isospins $0$, strangeness $S = -3$, and spin $3/2$. We
studied the $s$ wave interaction which implies that the possible resonances
generated in the system can have spin-parity $J^P = 3/2^-$. The unitary
amplitudes in coupled channels develop poles that can be associated with some
known baryonic resonances. We find there is a dynamically generated $3/2^-$
$\Omega$ state with mass around $1800$ MeV, which is in agreement with the
predictions of the five-quark model.
