Argentinian biker Jorge Martinez Boero has died following a crash on the opening stage of the 2012 Dakar Rally.
An official statement by the rally organisers says the 38-year-old suffered a fall two kilometres from the end of the 57km timed stage, suffering chest trauma and a subsequent cardiac arrest.
Medical teams were with Boero within five minutes of the accident but were unable to save his life as he died while being transferred to hospital by helicopter.
2012 was Boero's second time entering the Dakar Rally, following on from his 2011 campaign in which he retired after five stages of the event. On that occasion he spent a night in the Atacama Desert after crashing on the stage an waited eight hours until he was recovered from a cliff edge.