We perish because we know not… #TLENews
David de Leon, spokesman for the national disaster preparedness office, said authorities had put the area on alert, but no evacuations had been made so far.
Karina Lopez, a resident of nearby Antigua, said ash mixed with a drizzle reduced visibility and the volcano continued to rumble.
The national coordinator for disaster reduction agency issued instructions urging people to take shelter, wear masks, cover water tanks and be aware of evacuation routes. Firefighters were standing by.
The volcano sits on the border of the Guatemalan states of Escuintla, Sacatepequez and Chimaltenango. It has a height of 12,346ft above sea level.