Nonlinear electromagnetic interchange mode in a magnetized plasma, with the spatially dependent intensity of the magnetic field, is studied. The equilibrium conditions in such a system require the existence of a spatially nonuniform ion drift, and the effects of such a drift on the nonlinear evolution of unstable modes are investigated. The existence of spatially localized structures is demonstrated for the density, electric, and magnetic field. In the case of the magnetic field these structures have a twisted, or rope form. (C) 2002 American Institute of Physics.