At least seven people were injured and some 20 others went missing in a landslide reoccurred Saturday in southern Colombia, relief agencies said.

The incident occurred when a bulldozer was removing earth that blocked a driveway below the Andes Mountains in the aftermath of a previous landslide, and about 20 cars were waiting in a queue to pass at the time, said the Risk Management Department.

The injured have all been sent to the University Hospital of Neiva.

Due to the unstable terrain, light and weather conditions, rescuers have decided to wait until Sunday to resume the search for the 20 missing persons.