Rescue workers, police, soldiers and neighbours clawed away at the mud and debris searching for survivors all day yesterday. Families reported receiving text messages from people they believed to still be trapped.
"We have 29 dead people identified, and one still unidentified," Sergio Cabanas, incident commander for the government's disaster reduction office CONRAD, told AFP.
The victims include at least three children.
Authorities said that some 600 people are missing, an estimate based on the 125 homes that Thursday's landslide destroyed or damaged after heavy rains.
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Thirty-four people were pulled out alive from the mud and rubble, while 25 others were injured, CONRAD officials said.
The impact of the heavy rain was exacerbated by a nearby river, officials said. Municipal authorities had recommended the community relocate last year.
Eight people had already died in previous weather-related events tied to Guatemala's rainy season, which lasts from May to November, according to government data.
Last year's rainy season was tied to 29 deaths and damage to more than 9,000 homes.