TITLE: GCN CIRCULAR NUMBER: 13658 SUBJECT: GRB 120816A: BOOTES-2 observations DATE: 12/08/16 23:35:34 GMT FROM: Alberto Castro-Tirado at Inst.de Astro. de Andalucia M. Jelínek, J. C. Tello, J. Gorosabel and A. J. Castro-Tirado (IAA-CSIC Granada), on behalf of a larger collaboration, report: "Following the detection of GRB 120816A (Page et al. GCNC 13654), the BOOTES-2/TELMA 0.6m telescope (+COLORES) in southern Spain started to observe the field about one hour after the GRB, as soon as the night started, obtaining a series of unfiltered images. In particular, a combination of 15x60s frames gathered around 20:24:35UT (i.e. T0+66min) provides a limit of R > 18 at the position of the reported optical counterpart (Rau and Kanbach GCNC 13657)." This message can be quoted.