A communication breakdown between a disaster agency and volcanologists in Guatemala delayed evacuations as gas and ash clouds cascaded down the Volcano of Fire last Sunday in its most violent eruption in four decades, authorities have admitted.
Compounding the situation, rain and clouds hid signs of the toxic shower of debris, known as a pyroclastic flow, hurtling down the mountainside, hindering visual observation.
The scalding material that poured out of the volcano has killed 100 people, with more than 190 missing, authorities say, as rescue work on Thursday was suspended as it was too dangerous for the workers.