One of the biggest “fatbergs” ever seen in Britain, a ball of fat as long as three soccer pitches, is seen after it was found blocking a Victorian-era, east London sewer, in an image handed out by Thames Water, September 12, 2017. Thames Water handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS FOR EDITORIAL USE ONLY. NO RESALES. NO ARCHIVES – RC1F4D6EE1A0