Current filaments in magnetized plasmas

We present direct experimental evidence of the presence of filamentary current structures in turbulent magnetized plasmas. Experiments have been performed in different devices. In the the reversed field pinch RFX-mod device, small scales turbulent intermittent structures, have been interpreted as Drift-Kinetic Alf\'en vortices, resulting from the non-linear coupling of drift and Kinetic Alfv\'en waves, with a bipolar current filaments associated to a vorticity perturbation. In thee ASDEX Upgrade tokamak evidences of monopolar current filaments travelling in the SOL, have been observed in correspondance with type-I ELMs. An evaluation of the current carried by individual ELMs is presented. Finally preliminary direct measurements of the 2D structure of the blob-induced parallel current using magnetic probes, as obtain in the simple magnetized plasma TORPEX, will be presented.