  Using 43 months of public gamma-ray data from the Fermi Large Area Telescope,
we find in regions close to the Galactic center at energies of 130 GeV a 4.6
sigma excess that is not inconsistent with a gamma-ray line from dark matter
annihilation. When taking into account the look-elsewhere effect, the
significance of the observed signature is 3.2 sigma. If interpreted in terms of
dark matter particles annihilating into a photon pair, the observations imply a
partial annihilation cross-section of about 10^-27 cm^3s^-1 and a dark matter
mass around 130 GeV. We review aspects of the statistical analysis and comment
on possible instrumental indications.
