Spain is coming under pressure from Nato allies not to allow the refuelling of Russian warships bound for Syria. The Spanish government is now reviewing the permit for refuelling at its enclave of Ceuta in North Africa. The UK said it would be “extremely concerned” if the refuelling went ahead. Nato expressed concern that the ships could be used to help bomb civilians in Aleppo, but said the final decision on resupply rested with Spain. The battle group has been sailing for the past week from Russia via the English Channel to the Mediterranean. It was expected to pass through the Strait of Gibraltar on Wednesday.