A surveillance system comprising: an unmanned vehicle(UxV), control unit configured to communicate over a communication link with a UxV; the UxV comprising a sensing unit configured to capture one or more images of a surveyed area and transmit the images to the UxV control unit; the UxV control unit is configured to display the one or more images on a display device; the surveillance system being characterized in that the UxV control unit is further configured, responsive to received data indicative of a selected object in the one or more images, to assign a graphical control icon to the selected object; the graphical control icon being a 3D representation of the selected object, wherein different faces of the selected object are assigned to different respective faces of the graphical control icon; the graphical control icon is capable of being interacted by an operator for changing its orientation and thus exposing, towards the operator, areas of the control icon which represent respective areas of the selected object which are not exposed in the one or more images displayed on the display device and thereby enable to generate instructions with respect to the areas which are not exposed in the one or more images; whereby the surveillance system is further configured, responsive to interaction of an operator with the control icon for indicating desired viewing angles of the selected object, to: determine whether viewing the selected object in the desired viewing angles requires repositioning of the UxV and if so, to generate instructions for repositioning the UxV to enable the sensing unit to view the object at the desired viewing angles. an unmanned vehicle(UxV), control unit configured to communicate over a communication link with a UxV; the UxV comprising a sensing unit configured to capture one or more images of a surveyed area and transmit the images to the UxV control unit; the UxV control unit is configured to display the one or more images on a display device; the surveillance system being characterized in that the UxV control unit is further configured, responsive to received data indicative of a selected object in the one or more images, to assign a graphical control icon to the selected object; the graphical control icon being a 3D representation of the selected object, wherein different faces of the selected object are assigned to different respective faces of the graphical control icon; the graphical control icon is capable of being interacted by an operator for changing its orientation and thus exposing, towards the operator, areas of the control icon which represent respective areas of the selected object which are not exposed in the one or more images displayed on the display device and thereby enable to generate instructions with respect to the areas which are not exposed in the one or more images; whereby the surveillance system is further configured, responsive to interaction of an operator with the control icon for indicating desired viewing angles of the selected object, to: determine whether viewing the selected object in the desired viewing angles requires repositioning of the UxV and if so, to generate instructions for repositioning the UxV to enable the sensing unit to view the object at the desired viewing angles.