TITLE: GCN CIRCULAR NUMBER: 6276 SUBJECT: GRB 070412: NOT observations DATE: 07/04/12 02:55:03 GMT FROM: Daniele Malesani at Niels Bohr Inst,Dark Cosmology Center D. Malesani (DARK/NBI) and H. Uthars (NOT) report: We observed the field of GRB 070412 (Romano et al., GCN 6273) using the NOT + ALFOSC in the R and i bands. Inside the XRT error circle, we detect a source at the detection limit (R = 24 +- 0.3) at the following coordinates: alpha = 12:06:10.83 delta = 40:08:27.8 The source is only detected in the (deeper) R-band frame. No other source is deteted inside the XRT error circle fown to R~24.1. The observation was carried out 56 min after the trigger. Given the large size of the error box (5.6"), we cannot assess whether this source is associated to the GRB. We note however the lack of bright objects inside the XRT circle. Further observations are underway.