"A wall of earth fell on a bus and around 100 local people organized themselves to dig out the victims. Then another landslide came along and buried them," said a spokesman for the local fire department Sergio Vasquez, according to Reuters.
Rescue workers had unearthed 22 bodies on a main highway northwest of Guatemala City.
On Sunday floods washed away sections of the Inter-American Highway, burying a bus and knocking several other vehicles off the road.
Heavy rains and floods caused many landslides in the country over the weekend. So far 70 people have been reported dead, but the final death toll is expected to be much higher.
The natural disaster affected nearly 42,000 people, damaging thousands of homes and crop fields.
This is the second natural disaster in the country this year after the tropical storm Agatha killed 150 people in May.
