MADRID — A former employee of JPMorgan Chase was arrested in Spain on Tuesday, weeks after the US government charged him with hiding trading losses that ultimately reached more than $6 billion.
In a brief statement, the Spanish police said the former JPMorgan trader, Javier Martin-Artajo, surrendered Tuesday morning after they made contact with him. His case will now work its way through Spain’s national court, whose duties include ruling on extradition requests.
Martin-Artajo, a Spaniard who worked in JPMorgan’s London office, was released soon after his surrender Tuesday. He agreed to remain at the disposal of the Spanish judiciary, but it was unclear whether his passport was confiscated, according to a judicial source who asked not to be named. The person would not confirm whether bail was posted. Full story for BostonGlobe.com subscribers.