CARACAS, Venezuela (AP) -- A united, well-organized opposition led by a youthful state governor gave President Hugo Chavez the race of his life Sunday as Venezuelans turned out in huge numbers for a presidential election on the country's socialist direction.
Tensions rose in the bitterly divided petroleum-exporting nation while an undetermined number of voting stations remained open after the official 6 p.m. closing time, with not a single result announced more than three hours later.
Chavez, who has ruled for nearly 14 years, called on Venezuelans to await results patiently, speaking briefly by phone during a news conference held by his campaign chief. That message was echoed by challenger Henrique Capriles, who wrote on Twitter, "We know what happened and we should wait." He also called Sunday "a grand, historic day."
Electoral officials gave no indication of when they might begin releasing first returns. Publishing exit polls and unofficial vote counts is illegal in Venezuela.
The electoral council's president, Tibisay Lucena, said any stations where voters had not cast ballots would remain open. Meanwhile, bands of red-shirted pro-Chavez motorcyclists, honking horns, roved central Caracas ensuring that such stations stayed open.
While not accusing the government of intentionally delaying results, Capriles did complain earlier that most voting stations lacked lines and the government should get on with the vote-counting.
Capriles spokesman Armando Briquet demanded all motorcycle traffic be banned. In the past, gangs of red-shirted motorcyclists chanting pro-Chavez slogans have intimidated people.
Chavez's campaign manager, Jorge Rodriguez, told reporters there were no such plans. "This country has freedom of circulation," he said at a news conference.
The opposing camps distrust each other so deeply that some Venezuelans worried a close election result might not be respected.
If Chavez wins, he gets a free hand to push for an even bigger state role in the economy and continue populist programs. He's also likely to further limit dissent and deepen friendships with U.S. rivals.
With a Capriles victory, many expect abrupt foreign policy shifts such as a halt to preferential oil deals with allies such as Cuba, along with a loosening of state economic controls and an increase in private investment.
A tense transition would likely follow until the January inauguration because Chavez's political machine thoroughly controls the wheels of government, which has at least 2.4 million employees.
"We will recognize the results, whatever they are," Chavez told reporters after casting his vote in Caracas. He said he was pleased by the "massive turnout."
The stakes in the country with the world's largest known oil reserves couldn't be higher.
Just as polls closed, one of hundreds of young red-shirted Chavistas who took to the streets on motorcycles said they were ready to begin celebrating.
"Let them accept defeat," Kleiver Gutierrez said of the opposition.
One pro-Chavez voter, private bodyguard Carlos Julio Silva, said that whatever his faults, Chavez deserves to win for spreading the nation's oil wealth to the poor with free medical care, public housing and other government largess.
"There is corruption, there's plenty of bureaucracy, but the people have never had a leader who cared about this country," Silva said after voting for Chavez at a school in the Caracas slum of Petare. "That's why the people are going to re-elect Hugo Rafael Chavez Frias."
At many polling places, voters began lining up hours before polls opened at dawn, some snaking blocks in the baking Caribbean sun. Some shaded themselves with umbrellas. Vendors grilled meat and some people drank beer.
Maria Leonis was selling CDs of Chavez's campaign theme music on a sidewalk next to a polling center. "Today I've sold about 100 CDs, just Chavez's song," Leonis said, adding that she supported Chavez because "I want to keep seeing change."
Chavez's critics said the president has inflamed divisions by labeling his opponents "fascists," `'Yankees" and "neo-Nazis," while Chavez's loyalists alleged Capriles would halt generous government programs that assist the poor.
"I'm really tired of all this polarization," said Lissette Garcia, a 39-year-old clothes seller and Capriles supporter who voted in the affluent Caracas district of Las Mercedes. "I want to reconnect with all my friends who are `Chavistas."'
Violence flared sporadically during the campaign, including shootings and rock-throwing during rallies and political caravans. Two Capriles supporters were shot to death in the western state of Barinas last weekend.
Troops guarded thousands of voting centers across the country.
Defense Minister Henry Rangel Silva said as he voted that all had been calm and he hoped that would continue. He said if any groups try to "disturb order, they should know there is an armed force prepared and equipped and trained ... to put down any attempt at disturbances."