Kristof Goddaert, the Belgian cyclist, has died while training, his team IAM Cycling have announced.
Reports suggested the 27-year-old fell while crossing a train track and was run over by a bus travelling behind him.
A team statement read: "IAM Cycling have lost Kristof Goddaert, an exemplary professional rider and a man of quality. We always appreciated his good humour every day, his enthusiasm and his full commitment to whatever he attempted.
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"Our thoughts are with his family and those close to him, and we send them our condolences at this terrible time."
Britain's track and road world champion, and 25-time Tour de France stage winner Mark Cavendish wrote on Twitter: "Just read the tragic news about Kristof Goddaert & brought to tears. Such a nice guy who loved racing his bike. RIP Kristof." Goddaert was third in the Paris-Brussels road race in 2009 and second in the 2008 Tour de Vendee, as well as winning a stage of 2010's Tour de Wallonie.
His death follows that of South African racer Jeanne Nell, who died following a racing crash in Cape Town last Tuesday.