From the BBC:
Miss Geymonat added that the gang of at least four men might have broken her nose during the ordeal, and stole a phone and bag from them before fleeing.
Both women were taken to hospital for treatment to facial injuries. Miss Geymonat said one of the men spoke Spanish and the others had British accents.
I'll be on the look out for a man speaking Spanish and three or more men with British accents!