At least 300 people have been injured in the Bolivian city of La Paz following a serious mudslide, Mayor Juan del Granado said Tuesday.

"The (movements) are still ongoing but ... we are talking about more than 60 families affected and 300 people injured," del Granado said.

"Until now we are talking about more or less 50 houses that are affected," he added.

The landslide affected an area of four hectares and was caused by "the presence of subterranean water, which lubricated a level of earth" according to Johnny Bernal, a municipal expert.

No fatalities have been reported.