TITLE: GCN CIRCULAR NUMBER: 20150 SUBJECT: GRB 161108A: NOT redshift DATE: 16/11/08 15:00:18 GMT FROM: Antonio de Ugarte Postigo at IAA-CSIC A. de Ugarte Postigo (IAA-CSIC and DARK/NBI), D. Malesani (DARK/NBI and DTU Space), D.A. Perley (DARK/NBI), J.P.U. Fynbo (DARK/NBI), K.E. Heintz (Univ. of Iceland and DARK/NBI), A. Somero (UTU), E. Gafton (NOT, SU, OKC), S. Damsted (Univ. Helsinki), G. Erfanianfar (MPE), A. Finoguenov (Univ. Helsinki), C. Gibson (Univ. Helsinki), F. Kiefer (MPE), C. Kirkpatrick (Univ. Helsinki), M. Lumme (Univ. Helsinki), V. Oja (Univ. Helsinki), J. Rantakyla (Univ. Helsinki), I. Salmenpera (Univ. Helsinki), and M. Seppala (Univ. Helsinki), report on behalf of a larger collaboration: Continuing with the observations of GRB 161108A (Beardmore et al., GCN 20145) reported by Malesani et al. (GCN 20146) we performed spectroscopy of the afterglow (see also Butler et al. GCN 20149) and host galaxy using the Nordic Optical Telescope (NOT) equipped with AlFOSC. The observation consisted of 2x1200s+1x600s exposures using grism 4, starting at 5:47 UT (2.25 hr after the burst). The spectrum shows continuum from 3900 to 9300 AA, with a single emission line at 8048 AA, consistent with being due to the [O II] doublet at z=1.159. Additionally we detect low SNR absorption features consistent with Mg II, Mg I, and Fe II at the same redshift, which we identify as the redshift of the GRB.