Abstract: A door structure for vehicles has a door outer lining, a door inner lining and a locking/closing mechanism with actuating elements on the outer side and optionally on the inner side of the door. The locking/closing mechanism is connected to the door release via at least one transmission element (8) between the door outer lining and the door inner lining. A locking element (1) between the door outer lining and the door inner lining acts on the transmission element (8) and inhibits the door release in the event of a side impact, The locking element (1) inhibits the operation of the transmission element (8) by blocking it as a result of pivoting of the locking element (1) in the event of a relative movement of the door outer lining in the direction of the door inner lining.