STOCKHOLM (AP) — A Russian employee in the Swedish branch of Canadian plane and train maker Bombardier has been acquitted of aggravated bribery in one of Sweden's biggest corruption cases to date.

The Stockholm District Court says "it could not be proven" that Evgeny Pavlov, an employee of Bombardier Transportation Sweden AB, "has promised or offered an unfair advantage, which is a prerequisite for the existence of a bribe."

Pavlov had been accused of bribery to win a contract for a signaling system with a contract value of around $340 million. He was facing a six-year jail sentence and deportation.

In 2013, Bombardier was part of a consortium awarded a $288 million contract to supply signaling equipment for a 500-kilometer (300-mile) track along a corridor connecting Asia and Europe to Azerbaijan Railways.