Abstract: The invention relates to an interference-shielded mobile station (10), which includes a circuit board (11), a shield (12), and electrically conductive securing members (13), separate from the shield (12), for attaching the shield (12). In the shield (12) there are openings (15) for the securing members (13). The mobile station further includes grounding elements (16) for connecting the shield (12) and the securing members (13) galvanically to the circuit board (11). Each grounding element (16) extends to the said opening (15) at the securing member (13). The grounding element (16) is at the same time in contact with the securing member (13). In addition, the grounding element (16) is part of the shield (12) for grounding both the shield (12) and the securing member (13) to the ground level of the circuit board (11). The invention also relates to a corresponding arrangement and method in the interference shielding of a mobile station (10).