25 million people affected: Government of Mexico raises warning level due to Popocatépetl volcano. Mexico's civil protection raised the warning level to "Yellow Phase <>", just one step ahead of the red alert.
In 40 cities and municipalities, face-to-face classes at schools have been cancelled, and the population is urged to stay at home and keep doors and windows closed. About 100 million people live within a radius of 25 kilometers around the volcano. The last major eruption occurred in 2013, the ashes reached four districts of Mexico City.