TITLE: GCN CIRCULAR NUMBER: 16227 SUBJECT: GRB 140508A: 1.23m CAHA BVRI-band observations DATE: 14/05/08 23:02:30 GMT FROM: Javier Gorosabel at IAA-CSIC J. Gorosabel (UPV-EHU/IAA-CSIC), A. Sanchez-Lavega (UPV/EHU), S. Perez-Hoyos (UPV/EHU), R. Hueso (UPV/EHU), J. Ugarte (UPV/EHU), I. Ordonez (UPV/EHU), E. Arandia (UPV/EHU), I. Perez de Nanclares (UPV/EHU), on behalf of the BEGIRA project: "We observed the field of GRB140508A (GCN Cir. 16224,16225) starting on May 8.93559 UT. The optical transient detected by Singer et al. (GCN Cir. 16226) is clearly detected in our images with an approximate Vega magnitude of R=18.8 with respect to the USNO B1.0."