TITLE: GCN CIRCULAR NUMBER: 16411 SUBJECT: GRB 140606A: BTA and OSN optical observations DATE: 14/06/16 09:46:39 GMT FROM: Alberto Castro-Tirado at Inst.de Astro. de Andalucia A. S. Moskvitin (SAO RAS), A. F. Valeev (SAO RAS, Kazan Federal U.), V. N. Komarova (SAO RAS), V. V. Sokolov, T.N. Sokolova (SAO RAS), J. Aceituno, S. R. Oates (IAA-CSIC), J. Gorosabel (IAA-CSIC, EPV-EHU) and A. J. Castro-Tirado (IAA-CSIC, ISA-UMA) on behalf of larger collaboration report: We observed the field of the short GRB 140606A (Stroh et al., GCNC 16353) 11.3 h after with the 6-meter BTA (+Scorpio-I) at SAO-RAS (Zelenchuk, Russia). Comparison images (R-band) were obtained with the 1.5m telescope at Observatorio de Sierra Nevada (south Spain) 60 h post burst. Within the refined BAT gamma-ray burst error circle (Cummings et al., GCNC 16354), we identify no variable object down to R = 22, in agreement with the limit reported by Volnova et al. (GCNC 16371).