Pirates who have captured a taker ship off the coast of africa are demanding $35 million as a ransom for the release of the ship.The pirates earlier warned against any attempt to rescue the crew or cargo of the MV Faina, which is carrying 33 battle tanks destined for Kenya. Ukraine's foreign ministry said the ship had a crew of 21 and was sailing towards the Kenyan port of Mombasa. Senior UN officials estimate the ransoms pirates earn from hijacking ships exceed $100m (£54m) a year.

