A method performed by a road identifying system of a vehicle for localization of the vehicle in a multi-level road system. The road identifying system determines with support from a positioning system, a position of the vehicle, identifies, based on the vehicle position with support from at least a first digital map, a multi-level road system in which the vehicle is positioned and obtains image data with support from one or more image capturing devices adapted to capture surroundings of the vehicle. Moreover, the road identifying system determines a road level at which the vehicle is positioned based on feeding the image data through a neural network trained to classify road level based on context of image content and identifies based on the determined road level, with support from the at least first digital map, a road and/or lane of the multi-level road system at which the vehicle is positioned.