GCN Circular 5825
D. A. Perley and J. S. Bloom report, On the night of 21 November 2006 (UT), we began spectroscopic observations of GRB061121 at 15:35 UT using Keck I (+LRIS). The optical afterglow is visible in the finder camera in early twilight and is detected in 120-second spectroscopic exposures down to the atmospheric cutoff. Strong absorption features are observed. Observations are continuing.