Mexico's Popocatépetl volcano hurled hot fragments of rock half a mile into the air, causing officials to warn of more and bigger outbursts to come.
The volcano, southeast of Mexico City, sent giant plumes of ash and water vapor into the sky, the CBC reported.
The gritty ash could end up ruining car engines and block drains.
More from GlobalPost: Authorities in Mexico prepare to evacuate residents near Popocatépetl volcano after alert level raised
The National Disaster Prevention Centre on Tuesday warned the volcano could experience "significant explosions of growing intensity that hurl incandescent rocks significant distances" according to the Associated Press.
More from GlobalPost: Mexico: 6.3 earthquake in Guerrero state is felt in Mexico City
Nature wrote Popocatépetl is one of Mexico’s most active volcanoes and started erupting in 1994 after more than 50 years of quiet. In 2000, a massive eruption caused 50,000 people to evacuate.