An Israeli source has claimed that the hijack by pirates of a boat which disappeared off the coast was a cover, and that the ship was carrying a Russian missile system to Iran.
The Arctic Sea and its 15 crew members, all Russian, disappeared in July. The ship was then believed to have been sailing to Algeria with a cargo of timber.
The ship was found in mid-August off West Africa, and Moscow claimed the ship had been hijacked by pirates, charging eight men with hijacking and piracy.
But a senior Israeli intelligence source told the BBC the hijacking was a cover-up story, or even a set-up by Mossad, to give the Russian navy time to intercept the ship.