The Denmark Place fire occurred on 16 August 1980 at 18 Denmark Place in central London. The fire, caused by arson, killed 37 people of eight nationalities. Most of the victims were Spanish or Latin American, and were patrons of two unlicensed bars in the building. At the time, The Sunday Times said the fire could be "the worst mass murder in British history". It is the deadliest act of mass murder by a lone perpetrator in Britain’s history.