There are 26 reports of Note7 fires that Samsung was not able to acknowledge. In 12 cases, there was no fault found by the recalled Samsung handset. The other 14 cases included seven where the affected customer became unreachable shortly after, while the last seven victims either cancelled their reports or claimed to dispose of the device. Most of these cases came from the US, where nine inconclusive cases originated. Three such cases also came from South Korea, two from France, and just a single case from each: Canada, The UK, The Philippines, Turkey, Croatia, Vietnam, Singapore, Iraq,...
Source: http://www.gsmarena.com/hoaxers_took_advantage_of_the_note7_recall_at_least_26_false_fire_reports-news-20658.php
