Abstract: A security arrangement for a load carrying assembly includes a carrier plate and an attachment plate. The plates are arranged with interconnected guiding members arranged to enable relative movement of the carrier plate in a longitudinal direction of the roof rack assembly. The carrier plate further includes one first attachment device arranged to enable attachment of the security arrangement to a roof box. The attachment plate includes one second attachment device arranged to enable attachment of the security arrangement to a roof rack assembly and an energy absorbing member is arranged between the two plates and attached to the two plates by first and second attachment members arranged to enable relative movement between the carrier plate and the attachment plate in the longitudinal direction upon simultaneous absorption of energy to minimize the risk of hazard in connection with a vehicle suddenly decelerating.