GCN Circular 6801
K. Antonyuk, V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the error box of GRB070917 (Cummings et al., GCN 6743) with AZT-11 telescope of CrAO on Sep. 17. Series of images were obtained between (UT) 2007-09-17 18:58:08 and 19:25:37 in R filter. In a combined image of 6x300 s within the XRT error circle (Evans et al., GCN 6796) we do not detect any new sources in comparison with DSS2 up to the limiting magnitude (3 sigma) R=21.1. Photometry calibration is performed against USNO-A2.0. The combined image can be found in http://grb.rssi.ru/GRB070917/GRB070917_AZT-11.gif. This message may be cited.