The discovery of a protester's body near the scene of clashes on Saturday threatened to tip Bahrain deeper into unrest as a 14-month-old uprising overshadows the return of the Formula One Grand Prix to the strategic Gulf kingdom. Bahrain's Sunni rulers had pressed for the race to be held as a chance to rebuild their credibility on the world stage after it was called off last year as police and army troops cracked down on dissent. Persistent protests, however, have left the monarchy struggling to keep attention on Sunday's Formula One race -- Bahrain's premier international event -- as the country's Shiite majority pressed ahead with a campaign to break the near monopoly on power by the ruling Sunni dynasty, which has close ties to the West. At least 50 people have died in the conflict since February 2011 in the longest-running street battles of the Arab Spring. Read more: http://espn.go.com/racing/f1/story/_/id/7839173/bahrain-opens-probe-formula-one-protest-area-death