TITLE: GCN CIRCULAR NUMBER: 16861 SUBJECT: GRB 140930B: WHT detection of candidate afterglow DATE: 14/10/01 00:03:34 GMT FROM: Nial Tanvir at U.Leicester N. R. Tanvir (U. Leicester), A. J. Levan (U. Warwick) and M. Fraser (IoA, U. Cambridge) report: We observed the position of GRB 140930B (De Pasquale et al. GCN 16857) with ACAM on the WHT. Observations began at 22:40 UT, approximately 3.0 hr post burst. We detect a faint point source consistent with the revised X-ray position (Evans et al. GCN 16859) with a magnitude r~21.8 and position 00:25:23.45 +24:17:39.0 (provisional calibration). We note that no source is visible at this location in the SDSS observations of the field and therefore suggest it is likely to be the afterglow of this burst.