LA PAZ: Two Israeli tourists were killed and two others injured when their van crashed in southwest Bolivia, according to a local government report.

The crash was likely caused by speeding, the head of the local tourism bureau said in an interview on Bolivia's ATB television channel.

The four tourists were "in the desert, heading to Silala," a spring in the Andean department of Potosi, near the border with Chile, when they crashed.

The two victims were identified as a 54-year old woman and a 57-year old man. The two injured were taken to a private hospital in the capital, La Paz.

The region is home to the world's largest salt pit, a desert plateau, exotic lagoons and volcanic mountains.