WASHINGTON (AP) — A unanimous Supreme Court has ruled against a California woman who wanted to use American courts to sue the state-owned Austrian railway for grievous injuries she suffered while boarding a train in Innsbruck, Austria.

In their first decision of the term, the justices ruled Tuesday that Carol Sachs' lawsuit could not go forward in U.S. courts.

The railroad company OBB-Personenverkehr AG appealed to the Supreme Court after federal appellate judges in San Francisco said the suit could proceed because Sachs purchased her train ticket from a Massachusetts-based Internet site.

But Chief Justice John Roberts wrote that all of Sachs' claims "turn on the same tragic episode in Austria" in which her legs were crushed.