MERTHYR TYDFIL, WALES - OCTOBER 21: First Minister of Wales, Rhun ap Iorwerth greets members of the public during their visit to Aberfan Memorial Garden to mark the 60th anniversary of the Aberfan disaster on October 21, 2026 in Merthyr Tydfil, Wales. The Aberfan disaster was the catastrophic collapse of a National Coal Board spoil tip on 21 October 1966 in the small Welsh mining village of Aberfan, killing 144 people, including 116 children. A mountain of liquefied coal waste from the Merthyr Vale Colliery slid into the valley below, completely engulfing Pantglas Junior School and several surrounding houses. It remains the worst mining-related disaster in British history. (Photo by Chris Jackson/Getty Images)