GCN Circular 11043
V. Rumyantsev (CrAO), A. Pozanenko (IKI), A. Volnova (SAI MSU) report on behalf of larger GRB follow-up collaboration: We observed the field of the INTEGRAL GRB 100713A (Mereghetti et al. GCN 10951) with Shajn telescope of CrAO in VRI-filters starting July, 13 (UT) 21:56, i.e. 7.4 hours after burst. We do not detect any sources in enhanced XRT error circle (D'Elia et al. GCN 10960). The photometry of stacked images based on SDSS star J170053.83+282355.1 assuming R=16.46, I=16.24 and V=16.78 (the magnitudes obtained from Lupton's SDSS ugriz -> VRI transformations). T0+ Filter, Exposure, Upper Limit (mid, d) (s) 0.3539 V 43x60 24.0 0.3546 R 43x60 24.0 0.3553 I 43x60 23.2 Since we do not detect the source observed at 3.75 hours after burst (GCN 10962) we can suggest the source reported in GCN 10962 as the afterglow candidate.