The 1807 Newgate disaster or the Old Bailey Accident of 1807 was a human crush that occurred outside London's Newgate Prison on 23 February 1807. The disaster occurred when part of a large, dense crowd gathered to witness a triple execution destabilised after being disturbed by a collapsing wooden cart, which triggered a chain of events leading to a fatal crowd crush. Many fatalities and severe injuries resulted, with newspapers reporting that at least 27 perished in the accident and one observer counting at least 34 dead.