The new London underground line run by the Metropolitan Railway since 1863, the first in the world, suffered from a fatal accident near the Aldersgate Station when girders from an overhead construction site fell and hit a four-carriage train during the noon hour. All the cars were heavily damaged but the last was completely destroyed and the three passengers there, two men and a woman, were killed instantly or died later than day. The guard in the carriage survived with severe injuries. (By John Osborne)
Source Citation
"Chronicle," The Annual Register: A Review of Public Events at Home and Abroard for the Year 1866 (London: F. & J. Rivington, 1867), 201-204.