  Non-thermal radio emission is detected in the region of the gamma-ray source
FHES J1723.5-0501. The emission has an approximately circular shape 0.8 degrees
in diameter. The observations confirm its nature as a new supernova remnant,
G17.8+16.7. We derive constraints on the source parameters using the radio data
and gamma-ray observations of the region. The distance to the object is
possibly in the range 1.4-3.5 kpc. An SNR age of the order of 10 kyr is
compatible with the radio and GeV features, but an older or younger SNR cannot
be ruled out. A simple one-zone leptonic model naturally explains the
multi-wavelength non-thermal fluxes of the source at its location outside the
Galactic plane.
