Light curves of the optical afterglow of GRB 060526. Filled and open circles (detections, Bg′VR_CCRI_CJHK_S) and open triangles (upper limits, uvw2uvm2uvw1ubR_CCRJHK_S) are presented in this work, and open stars (Br′Ri′) are taken from Dai et al. (2007). The early light curve especially shows strong variability, with two flares seen in the UVOT v band data. The later light curve also shows evident variability, and the large V−R, B−R colours due to the high redshift are evident. Data in this plot are not corrected for foreground extinction.