New Flotilla Scuttled by Greed?

A Greek ship is being held in Greece, after leaving Libya.  The story is a bit confusing, but it seems as though there were activists, who gathered in Libya, to send aid to Gaza.  Then something happened, maybe a payment dispute, and the Greek ship's captain decided not to let any more of them on board, but some went ahead and jumped on board.  The ship left harbor and was then followed by the Libyan navy, until the Greek navy took over.  The British aid workers who made it on board are a bit concerned for their situation.  The remaining group in Libya is currently stranded, as their passports were confiscated.  More updates as information becomes available.