  Thanks to the use of advanced analysis techniques, the H.E.S.S. imaging
Cherenkov telescope array has now reached a sensitivity level allowing the
detection of sources with fluxes around 1% of the Crab with a limited
observation time (less than ~100 hours). 67 hours of observations in the region
of the supernova remnant G22.7-0.2 thus yielded the detection of the faint
point-like source HESS J1832-093 in spatial coincidence with a part of the
radio shell of the supernova remnant. A multi-wavelength search for
counterparts was then performed and led to the elaboration of various scenarii
in order to explain the origin of the very high energy excess. The presence of
molecular clouds in the line of sight could indicate a hadronic origin through
\pi^0 production and decay. However, the discovery of an X-ray point source and
its potential infrared counterpart give rise to other possibilities such as a
pulsar wind nebula nature or a binary system. The latest results on this source
are presented as well as the different scenarii brought by the multi-wavelength
observations.
