  TeV J2032+4130 is the first extended very high energy gamma-ray source, which
has remained enigmatic since its discovery, due to the lack of identification.
We report here deep radio observations covering the TeV J2032+4130 field and
revealing for the first time an extended and diffuse radio emission, as well as
a remarkable population of compact radio sources. Some of these radio sources
are in positional coincidence with X-ray and optical/IR sources. Future follow
up studies of these new radio sources will likely contribute to solve the
mystery of this extended unidentified TeV source.

Astrophysics