The U.N. secretary-general is raising the alarm on Yemen in a statement, saying more than 1,200 have been killed and that the country's health, water and telecommunications systems are "on the brink of collapse." The statement says the fighting has "severely blocked shipments of food, fuel and health care" and all airports are closed to civilian flights. The statement warns that already challenged humanitarian operations in the Arab world's poorest country will end within days unless fuel imports return.