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Competitors prepare to take part in the annual cross-harbour swim in Hong Kong on October 16, 2016. A swimmer drowned on October 16 in Hong Kong and another was left in critical condition as they took part in the city's annual cross-harbour swim, which attracts world-class international competitors. / AFP / STR (Photo credit should read STR/AFP/Getty Images)

Competitors prepare to take part in the annual cross-harbour swim in Hong Kong on October 16, 2016.
A swimmer drowned on October 16 in Hong Kong and another was left in critical condition as they took part in the city's annual cross-harbour swim, which attracts world-class international competitors. / AFP / STR        (Photo credit should read STR/AFP/Getty Images)