  Simultaneous modeling of the line and continuum emission from the nuclear
region of the Circinus galaxy is presented. Composite models which include the
combined effect of shocks and photoionization from the active center and from
the circumnuclear star forming region are considered. The effects of dust
reradiation, bremsstrahlung from the gas and synchrotron radiation are treated
consistently. The proposed model accounts for two important observational
features. First, the high obscuration of Circinus central source is produced by
high velocity and dense clouds with characteristic high dust-to-gas ratios.
Their large velocities, up to 1500 km\s, place them very close to the active
center. Second, the derived size of the line emitting region is well in
agreement with the observed limits for the coronal and narrow line region of
Circinus.
