GCN Circular 3351
A. Monfardini, C. Guidorzi, I. Steele, C. Mottram, D. Carter, A. Gomboc, C. Mundell and M. Bode (Liverpool) on behalf of the ROBONET collaboration report: "The 2m Faulkes Telescope North on Haleakala automatically reacted to the INTEGRAL trigger for GRB050504 (GCN3348). The robotic pipeline, based on a series of short exposures, didn't detect any new source up to R ~ 19 at 3.7 minutes after the burst. The bright source mentioned in GCN3347 and GCN3349 by Cenko et al. affects our sensitivity over a significant fraction of the error circle too. Further observations are in progress."