TITLE: GCN CIRCULAR NUMBER: 26179 SUBJECT: GRB 191106A: BOOTES-4/MET optical limit DATE: 19/11/06 15:57:20 GMT FROM: Alberto J. Castro-Tirado at IAA-CSIC Y.-D. Hu, E. Fernandez-Garcia, A. J. Castro-Tirado (IAA-CSIC), C. Perez del Pulgar, A. Castellon, I. Carrasco (Univ. de Malaga), S. Guziy (Univ. of Nikolaev) and D. Xiong, Y. Fan, X. Zhao, J. Bai, C. Wang, Y. Xin (Yunnan National Astronomical Observatory) on behalf of a larger collaboration, report: Following the detection of GRB 191106A by Swift (Marshall et al. GCNC 26177), the 0.6m BOOTES-4/MET robotic telescope at Lijiang Astronomical Observatory (China) gathered images starting at 14:21 UT (~5.7 min after trigger). No optical afterglow is found down to 20.7 mag (unfiltered images) within the Swift/XRT error box, consistent with the non-detections by Swift/UVOT (Marshall et al. GCNC 26177) and MASTER (Lipunov et al. GCNC 26178). Observations are ongoing. We thank the staff at Lijiang Astronomical Observatory for their excellent support.