Twenty seven women wrapped tape across their mouths as part of an anti human trafficking protest on Saturday.

The 27 for 27 demonstration saw protestors travel to 27 London boroughs, including Merton, on August 10 to mark the 27 million men, women and children estimated to be trapped in slavery across the world and the UK.

The A21 Campaign is a global non-profit, non governmental organisation that directly helps victims of human trafficking and raises awareness by working with schools and liaising with government.