All Russian naval ships that were docked at the Syrian port of Tartus have left and it appears Moscow is now looking for a new base along the coast now that its key ally, Bashar Assad, has been ousted a ruler of Syria, a U.S. official said.

It’s not clear where the ships will go, but Russia may seek a new port on the Mediterranean Sea along the African shoreline, said the official, who spoke on condition of anonymity to discuss U.S. assessments.