Hi,
I have been issued a single entry schengen Visa for Belgium. I intend to travel from Brussels to Paris, then Barcelona. From Barcelona, I'm off to Basel. I just noticed that the night train from Barcelona to Basel passes through France. As my Visa is single entry, will i be refused to transit France? or will need a transit visa? I have tried to contact the French embassy in London but there 09 line is automated and doesn't answer my questions. Thanking you in advance.

