GCN Circular 5568
E. Berger (Carnegie Observatories) reports on behalf of a larger collaboration: "Starting on 2006 Sep. 13.22 UT we used GMOS on Gemini-South to obtain an 1800 sec spectrum of the bright 2MASS galaxy located 11" away from the optical afterglow position of GRB 060912 (GCN 5558), at a position angle that also included the afterglow position. The spectrum of the 2MASS galaxy it typical of an early-type galaxy with CaII H&K, Mg b, and Na D absorption features at a redshift, z=0.0936. At the position of the afterglow we do not detect any clear continuum emission or emission lines (4000-7000 A). If the 2MASS galaxy is in fact the host galaxy of GRB 060912, then the isotropic-equivalent gamma-ray energy is only 2.6e49 erg. Moreover, the nature of the host galaxy would suggest that the GRB is most likely to be a short burst. Deep imaging observations to search for a faint galaxy at the position of the afterglow are planned."