  The first remnants detected by the Fermi Gamma-ray Space Telescope were of
the type of mixed-morphology supernova remnants interacting with molecular
clouds. In this paper we are presenting preliminary results of the gamma-ray
analysis of 4 selected mixed morphology remnants, G359.1-0.5, G337.8-0.1,
G001.0-0.1, and G346.6-0.2, as well as G349.7+0.2, in the 0.2 - 300 GeV energy
range from the data collected by Fermi Gamma-ray Space Telescope for 3 years.
G359.1-0.5, G337.8-0.1, and G349.7+0.2 were all detected with significances
above 5 sigma. The excess distribution of G359.1-0.5 shows extended gamma-ray
emission, which coincides with the TeV gamma-ray source HESS J1745-303.
G337.8-0.1 also shows an extended nature.
