Colombo, Sri Lanka (CNN) -- Sri Lanka's opposition presidential candidate accused the incumbent of intimidation, as early returns reported by state-run TV SLRC showed President Mahinda Rajapaksa leading the race. Candidate Gen. Sarath Fonseka accused Rajapaksa of intimidation during the country's first peacetime presidential election in more than two decades and said his staff had received threatening phone calls Army soldiers and commandos tried to enter the Cinnamon Lakeside Hotel shortly after Fonseka and opposition party members arrived Tuesday, the former general told CNN. His security forces told the soldiers they could not enter the building, so they stayed outside, Fonseka said.
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NEW: Early returns show Rajapaksa leading, state-run TV SLRC reports
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Fonseka accuses Rajapaksa of intimidation
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Politicians vow to block Fonseka, saying he is not registered to vote
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Presidential election is first since government forces put down 26-year insurgency
Three and a half hours before @placeholder headed to the polls, explosions that residents said sounded like mortar fire were heard.