the invention relates to a sandwich panel , comprising two skin layers and , connected thereto , a core layer in between . the first skin layer extends beyond the core at an edge of the panel by a protruding part , thereby defining an open edge space of the panel . the panel is further provided with a support member for the protruding part , the support member having a first part , extending inside the open edge space , and having a second part extending outside the open edge space and up to the plane , defined by the outer surface of the first skin layer . the panel provides an improved delamination resistance . the invention also relates to a support member for use in a sandwich panel according to the invention , and to a vehicle , in particular an aircraft , provided with the sandwich panel .