Context : In some clusters of galaxies , a diffuse non-thermal emission is present , not obviously associated with any individual galaxy .
These sources have been identified as relics , mini-halos , and halos according to their properties and position with respect to the cluster center .
Moreover in a few cases have been reported the existence of a diffuse radio emission not identified with a cluster , but with a large scale filamentary region .

Aims : The aim of this work is to observe and discuss the diffuse radio emission present in the complex merging structure of galaxies ZwCl 2341.1+0000 .

Methods : We have obtained VLA observations at 1.4 GHz to derive a deep radio image of the diffuse emission .

Results : Low resolution VLA images show a diffuse radio emission associated to the complex merging region with a largest size = 2.2 Mpc .
In addition to the previously reported peripheral radio emission , classified as a double relic , diffuse emission is detected along the optical filament of galaxies .

Conclusions : The giant radio source discussed here shows that magnetic fields and relativistic particles are present also in filamentary structures .
Possible alternate scenarios are : a giant radio halo in between two symmetric relics , or the merging of two clusters both hosting a central radio halo .