BERLIN (AP) — Authorities say one hiker has been killed and another two injured in a rock fall in the Alps in central Austria.

The Austria Press Agency reported that rocks hit a group of four walkers on a path above the resort of Kaprun on Wednesday afternoon. The mountain rescue service said an Austrian man sustained fatal injuries and that another two people, believed to be Germans, were hurt.

The rocks slid nearly 800 meters down a slope and ended up piled up to 4 meters (13 feet) high on the path. It wasn't clear what set off the rock fall.