Dozens were killed after a fiery volcanic eruption in south-central Guatemala sent lava flowing into rural communities, blanketing homes and roads with ash that dogged rescue efforts. The death toll has risen to 38, Reuters reported Monday, citing Guatemala's disaster agency. Two million people have been affected by the volcano, the agency said. At least 20 people were injured, and authorities have said they feared the death toll could rise with an undetermined number of people unaccounted for. The Volcan de Fuego, or "Volcano of Fire," exploded in a hail of ash and molten rock shortly before noon, blanketing nearby villages in heavy ash. Lava began flowing down the mountain's flank and across homes and roads around 4 p.m.

A view of an area affected by eruption from Fuego volcano in the community of San Miguel Los Lotes in Escuintla, Guatemala June 4, 2018. Luis Echeverria | Reuters

Eddy Sanchez, director of the country's seismology and volcanology institute, said the flows reached temperatures of about 1,300 degrees Fahrenheit (700 Celsius). Dramatic video showed a fast-moving lahar, or flow of pyroclastic material and slurry, slamming into and partly destroying a bridge on a highway between Sacatepequez and Escuintla. Sacatepequez television published images of a charred landscape where the lava came into contact with homes. Three bodies lay partially buried in ash-colored debris from the volcano, which lies about 27 miles (44 kilometers) west of Guatemala City. Other videos from local media showed residents walking barefoot and covered in muddy residue. "Not everyone was able to get out. I think they ended up buried," Consuelo Hernandez, a resident of the village of El Rodeo, told the newspaper Diario de Centroamerica. "Where we saw the lava fall, we ran to a hillside" to escape, she added. Homes were still burning in El Rodeo late Sunday, and a charred stench hung over the town. Hundreds of rescue workers, including firefighters, police and soldiers, worked to help any survivors and recover any more bodies amid the still-smoking lava.

Firefighters carry a body at an area affected by the eruption of the Fuego volcano in the community of San Miguel Los Lotes in Escuintla, Guatemala, June 4, 2018. Luis Echeverria | Reuters

Firefighters said they had seen some people who were trapped, but roads were cut by pyroclastic flows and they had been unable to reach them. Amid darkness and rain, the rescue effort was suspended until early Monday morning, municipal firefighters' spokesman Cecilio Chacaj said. Among the fatalities were four people, including a disaster agency official, killed when lava set a house on fire in El Rodeo village, National Disaster Coordinator Sergio Cabanas said. Two children were burned to death as they watched the volcano's second eruption this year from a bridge, he added. Another victim was found in the streets of El Rodeo by volunteer firefighters and died in an ambulance. At an ad-hoc morgue in the town of Alotenango, at least three bodies lay covered with blue sheets. Guatemala's disaster agency said 3,100 people had evacuated nearby communities, and ash fall from the eruption was affecting an area with about 1.7 million of the country's 15 million or so people. Shelters were opened for those forced to flee.

Soldiers keep watch at a restricted area affected by an eruption from Fuego volcano in the community of San Miguel Los Lotes in Escuintla, Guatemala, June 4, 2018. Luis Echeverria | Reuters