Estimated number of casualties: between 3,500 and 5,800 fatalities
When? 17 June 1940
Ship? RMS Lancastria
The British government tried to keep secret on the orders of Winston Churchill
In July 2007 a request for documents held by the Ministry of Defence (MoD) related to the sinking was rejected by the British government. The Lancastria Association of Scotland made a further request in 2009. They were told that release under the FOIA would not be given because of several exemptions.
In the face of continued campaigning by relatives, the MoD stated in 2015 that all known documents had long been released through the National Archives.
https://en.wikipedia.org/wiki/RMS_Lancastria
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