The storm tore off roofs and scaffolding from skyscrapers causing serious flooding in low-lying areas as waves of more than three meters lashed the coast. Mangkhut made landfall in Guangdong killing four people before heading west into neighboring Guangxi province around Sunday midnight, that is why more than three million people have been moved to safety in southern China as Typhoon Mangkhut moved northwards and continued to wreak havoc across the region.