A wall structure (100) comprising composite panels (1). The wall structure further comprises a wall support structure (4) arranged for carrying at least part of the weight of the composite panels, and a support element (5) for transmitting the weight of the composite panel to the wall support structure (4). The support element (5) comprises a first attachment part (6) attached to the wall support structure (4) and having width not more than the width of a vertical seam between the panels, a second attachment part (7) attached to an outer surface of the composite panel (1) and having width more than the width of the vertical seam, and a shaft part (8) connecting the first attachment part (6) to the second attachment part (7) and having width not more than the width of the vertical seam. The shaft part (8) is in the vertical panel seam (2) and extends diagonally downwards from the first attachment part (6) to the second attachment part (7).