PARIS — A French prosecutor says investigators have found euro9.5 million ($14.25 million) in cash believed stolen from a Lyon branch of France's central bank, a heist that prompted a nationwide search.

Lyon Prosecutor Xavier Richaud said Monday the money was found in a storage space near a railway track where police earlier found the security truck used in the theft.

Police suspect a security driver of making off with euro11 million from the Banque de France on Thursday. Prosecutors said the suspect appeared to have acted alone and prepared his escape in advance.

The suspect remains at large. Police were on the lookout at all major airports as well as French border points.