At least four people were killed and thousands others displaced due to floods and landslides in Indonesia's West Sumatra province, a disaster agency official said on Saturday.

Heavy downpours occurred in Limapuluh Kota district which led to communication cut and also triggered a blackout.

"The landslide have buried about eight vehicles. So far, we have recovered four bodies from the vehicles. Other vehicles are still buried under mud and rocks. Perhaps there are others trapped inside," the official told Xinhua news agency.

"Floods have also forced thousands of villagers to flee homes, but we do not have the details of the figure," he added.