GCN Circular 6612
S. Piranomonte (INAF-OAR), S. Vergani (DIAS-DCU), P. D'Avanzo & G. Tagliaferri (INAF-OABr) report on behalf of the MISTICI collaboration: Following the detection by Swift/XRT (Beardmore et al., GCN 6610) of GRB 070707 (Beckmann et al., GCN 6605; Gotz et al., GCN 6607), we have inspected our VLT R-band images (D'Avanzo et al., GCN 6609). Inside the XRT error box, we find a single source with R ~ 23.0 (calibrated using archival instrumental zeropoints), at the coordinates (J2000, 0.5" error): RA(2000) = 17:50:58.55 Dec(2000) = -68:55:27.2 At the present stage, we cannot yet assess the relationship of this source with GRB 070707. Further observations are planned. This message can be cited.