A method for controlling congestion in a cell of a mobile communications network, the mobile communications network comprising a plurality of cells for communicating with user devices, comprises the steps of analyzing over a period of time the load in a group of neighboring cells, the group of neighboring cells forming a subset of the plurality of cells. A movement path of a cluster of user devices is estimated based on the analysis of the load in the group of neighboring cells. The size of one or more cells along the estimated movement path is adapted to control congestion in one or more cells. The reducing or increasing a cell size may be performed artificially by adjusting a threshold value at which one or more user devices should initiate handover to a different cell.