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V, I time-series photometry of the new Milky Way satellite recently discovered in the Bootes constellation (Belokurov et al. 2006 ) was collected at the TNG, WIRO and Loiano telescopes and used to search for variable stars. We have identified a non-negligible population of RR Lyrae variables, which confirms the presence of an old population in this newly discovered structure. The distribution of periods coupled with information on the evolutionary status of the system derived fromthedoi:10.1017/s1743921307008319 fatcat:bc6dysyqrjcd3g7xnswfuagdwy