A blaze being tackled by 100 firefighters at a supermarket below a block of flats in Golders Green, north-west London is due to an electrical fault, police have said. London Fire Brigade (LFB) received the first of 56 calls just after 06:45 BST to a three-storey building on Golders Green Road in Golders Green which it said "was producing a significant amount of smoke". Footage on social media appeared to show smoke billowing from behind Jewish supermarket Kosher Kingdom, where locals said the fire started. There are no injuries. The cause of the fire "is not believed to be suspicious", said Craig Carter, Assistant Commissioner of the LFB, and advised people in the area to keep windows and doors shut. Tap the link in BBCNews’s bio for the latest on the incident. #GoldersGreen #London #UK #BBCNews