On 6 February 1957, the Soviet government released a document dated 17 July 1947, which stated "I report that the prisoner Wallenberg who is well-known to you, died suddenly in his cell this night, probably as a result of a heart attack or heart failure.
1957年2月6日，苏联政府公布了一份日期为1947年7月17日的文件，上面说：“我汇报，您所熟悉的囚犯羅爾·華倫堡今晚猝死在他的囚室，可能是因为心脏病发作或心脏衰竭。