Yangon: The first of the UN's relief planes landed in Myanmar on Thursday as a US diplomat warned that the toll in Cyclone Nargis could be over 100,000, signalling a humanitarian crisis way beyond the military junta's estimates so far. Worldwide condemnation of the junta also grew, for keeping US aid planes at bay, even as thousands of hungry people swarmed the few open shops and fistfights broke out over food and water in the swamped Irrawaddy Delta. American diplomat Shari Villarosa, who heads the US embassy in Yangon, said the number of dead could eventually exceed 100,000 because safe food and water were scarce and unsanitary conditions widespread.