The Tungurahua volcano in central Ecuador spewed gas and ash Monday, prompting the government to issue an alert and the evacuation of villages near the volcano.
The message singled out the tourist town of Banos and areas where voluntary evacuations are under way in Cusúa, Juive Grander and Chico. It stressed the need for travelers to have an evacuation plan if conditions become more dangerous.
"Past eruptions have affected air travel in Ecuador," the message reads in part. "U.S. citizens planning to fly to, from, or within Ecuador should monitor news outlets and have a plan in the event of flight cancellations."