At least 27 people, including children as young as 7, are known to have died when the boat sank on Nov. 23, 2021, and four others are missing and presumed dead. Migrants on the vessel had made multiple calls for help after the boat began taking on water, and the British Coast Guard issued a mayday call to ships in the area. But a nearby French warship did not respond and a British vessel and helicopter failed to locate the dinghy.