A final failed attempt to prevent the Thomas Cook Group from administration or liquidation took place the evening of 22 September 2019. At around midnight on 23 September, airports in the UK began to impound Thomas Cook aircraft upon arrival, citing "default in payment of airport charges". Shortly after 02:00 BST, the Civil Aviation Authority (CAA) announced that the Thomas Cook Group had entered liquidation and ceased operations with immediate effect, leaving around 600,000 tourists overseas. The collapse of the company marked the end of a brand name that had been in continuous use since 1841.