Jan 19 - A crew member aboard the German yacht Walross 4 was knocked unconscious in an onboard accident deep in the Atlantic Ocean during the RORC Transatlantic Race, prompting a coordinated mid-ocean rescue, race organisers said.

The Nissen 56, owned by Berlin-based ASV, was around 1,500 nautical miles into the 3,000-mile crossing from Lanzarote to Antigua when the incident occurred. The Royal Ocean Racing Club alerted emergency authorities on Monday. Assuming responsibility for the response was the Maritime Rescue Coordination Centre in Ponta Delgada, on the island of Sao Miguel in the Azores.