GCN Circular 15704
E. Klunko (ISTP), M. Eselevich(ISTP), A. Volnova (IKI), A. Pozanenko(IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of the Swift GRB 140108A (Racusin et al., GCN 15699) with AZT-33IK telescope of Sayan observatory (Mondy) starting Jan., 08 (UT) 17:24:55. We obtained several images in R-filter with exposure of 20,60 and 180 seconds. Within the enhanced XRT circle (Evans et al., GCN 15700) we detected optical afterglow (Gorbovskoy et al., GCN 15701; Gorosabel et al., 15702) The position of the afterglow coincids with previously reported (Gorbovskoy et al., GCN 15701; Strobl et al., 15703). At (UT) 17:32, i.e. ~13.5 min. after GRB trigger the R-magnitude of the afterglow is ~19.2. The finding chart can be found in http://grb.rssi.ru/GRB140108A/GRB140108A_AZT33IK_2014-01-08T_17-30-34.png Observation is continuing.