© Licensed to London News Pictures. 14/12/2017. London, UK. An armed police officer totals to a group of children who attended the service, outside St Paul's Cathedral in London following the Grenfell Tower National Memorial Service mark the six month anniversary of the Grenfell Tower fire. The service is attended by survivors of the fire and relatives of those who lost their lives in the fire, as well as members of the emergency services and members of the Royal family.  Over 70 people were killed when a huge fire ripped though 24-storey Grenfell Tower block in west London in June 2017.   Photo credit: Ben Cawthra/LNP