A group of mums have launched their own crime-fighting 'patrol' after several of their young children had phones stolen at knifepoint.

Sinead Masterson formed the squad having grown frustrated at the alleged inaction of police after her 13-year-old son had his phone taken by an older boy with a knife.

The 34-year-old claims officers took 11 days to even come and take a statement from her "vulnerable" son, who has autism.

The mum-of-three later learned of several similar robberies in Islington, north London, and contacted other parents who have now decided to take matters into their own hands.