A giant blaze broke out at an abandoned London warehouse on the site of the 2012 Olympic games today, sending a huge column of black smoke over the city. Fire crews reported no casualties and authorities have found no evidence linking the incident to a terrorist attack. Officials said it was believed to have been caused by burning diesel fuel, CNN reports.
"The sky overhead is totally overcast. It's like twilight round here," one resident told CNN. The blaze started at 7:15 ET in an industrial zone of the city in an area currently under renovation in preparation for the Olympics.