The Fuego volcano in central Guatemala has begun shooting lava and columns of ash into the air, and authorities have raised the alert level in the area.
The volcano overlooks the tourist city of Antigua and is one of Central America's most-active volcanoes.
Guatemala's National Seismology, Vulcanology, Meteorology and Hydrology Institute said in a statement that Fuego shot ash 16,400 feet into the air. Lava flows reached up to 3,280 feet in length.
David de Leon, spokesman for the national disaster agency, said authorities have raised the alert level because Fuego is in an effusive stage.
The measure involves closing nearby highways, installing monitoring stations and readying emergency workers.
Mr De Leon said while no evacuations have been ordered, there might be if Fuego's activity increases.