The 30 meter long fishing vessel Ester sank off the Canaries Islands.   The Ester sprung a leak and the vessel requested assistance.   The nearby fishing vessel Mersal VI responded and safely transferred 14 of the 27 crew on board the Ester.  The remaining crew remained on board attempting to control the water ingress.   The Maritime Rescue Center dispatched a plane and helicopter to the scene.  When a plane reached the scene, the Ester crew requested a more powerful bilge pump.  The helicopter reached the scene and lowered a more powerful pump.   At this point, the Ester was listing heavily to port and  the pumping was unsuccessful.  The remaining crew abandoned ship and the Ester finally sank between Dakhla and Gran Canaria.   No reports of injuries.