<sod >Â  Police have so far arrested two teenagers, aged 15 and 16, in connection with the attacks which all took place in the neighbouring boroughs of Hackney and Islington.< eod>< sod > Â  Police have so far arrested two teenagers, aged 15 and 16, in connection with last night'sÂ attacks which all took place in the neighbouring boroughs of Hackney and Islington.< eod>