A) OSIRIS NAC image (see Table 6 for image ID) taken on 29 November 2014 at a distance of 16.94 km from the surface of 67P. The scale of the image is 0.32 m/px. This area is located in the Imhotep region (Thomas et al. 2015b); I is a 30 m boulder crossed by multiple fractures, i.e., a good candidate for future fragmentation. II and III show examples of split materials located around an 18 m boulder (II) and a 34 m boulder (III). B) OSIRIS NAC image taken on 22 October 2014 at a distance of 8.10 km from the surface of 67P. The resolution of the image is 0.15 m/px. IV and V are 10 m boulders with multiple fractures surrounded by split material.