A device having a securing element which can be blocked in a load rail which is anchored so as to be fixed to a vehicle, the securing element having a base member with a retention region which can be inserted into the load rail in a positive-locking manner, and the base member includes at least one bar member for engagement in a catch bar arrangement of the load rail which is supported so as to be able to be moved relative to the base member. A additional bar is provided which is movably supported parallel with the bar member and independently of the bar member, and which is resiliently loaded in the direction of the blocking position and which can be moved together with the bar member into the release position.