Results of hybrid simulations. Left panel demonstrates plasmoid reconnection obtained in the simulation with bigger system size (L_x/L = 240) at t = 300 t_A. Right panel demonstrates single X-line reconnection obtained in the simulation with smaller system size (L_x/L = 30) at t = 110 t_A. The colour represents the out-of-plane current superimposed with the in-plane projection of magnetic field lines (contours of the magnetic surfaces). The simulations were performed with the Hybrid code.