BANGKOK (AP) -- On the streets of Thailand's tense capital, campaign posters bearing images of the country's prime minister have been ripped apart and punched through, defaced with a blunt message for the beleaguered government of Yingluck Shinawatra: "Get Out."
The vandals are not, however, challenging her party in nationwide elections Sunday. They are part of a protest movement fighting to overthrow her that is not only boycotting the poll but has actively tried to stop it from taking place.
The result is a highly unusual ballot that has little to do with the traditional contests between rival candidates vying for office.
Instead, polling day is shaping up as a battle of wills between protesters and the government. On the one side are demonstrators who say they want to suspend the country's fragile democracy to institute anti-corruption reforms, and on the other those who know the election will do little to solve the nation's crisis but insist the right to vote should not be taken away.
Gunshots and several explosions rang out in the north of the city on Saturday, as pro-government supporters and anti-government demonstrators hurled rocks at each other. At least one person was wounded in the clash in the Laksi district and taken away in an ambulance, according to an Associated Press team on the scene.
After a day of chaotic advance voting in Bangkok a week ago and three months of anti-government protests that have left 10 dead and nearly 600 wounded, many are bracing for more violence on Sunday.
"How did we get to this point?" asked Chanida Pakdeebanchasak, a 28-year-old Bangkok resident who was determined to cast her ballot Sunday no matter what happens. "Since when does going to vote mean you don't love the country?"
The protesters, a minority that cannot win power at the polls, are demanding the government be replaced by an unelected council that would implement political and electoral reforms to combat deep-seated problems of corruption and money politics. Yingluck has refused to step down, arguing she is open to reform and such a council would be unconstitutional.
The crisis has almost completely overshadowed campaigning. Instead of stump speeches and electrified rallies for candidates hoping to take office, Thailand's muted capital has been gripped instead by a palpable sense of dread and uncertainty over whether demonstrators will physically block voters from getting inside polling centers.
Although unrest could hit Bangkok and polling stations may not open in some parts of the south if ballot materials don't arrive in time, voting is expected to proceed smoothly in most of the country.
Police say they will deploy 100,000 officers nationwide, while the army is putting 5,000 soldiers in Bangkok to boost security. More than 47 million people are registered to vote.
Whatever happens, the outcome of Sunday's election will almost certainly be inconclusive. Because protesters have already blocked candidate registration in some districts, Parliament will not have enough members to convene. That means Yingluck will be unable to form a government or even pass a budget, and Thailand will be stuck in political limbo for months as by-elections are run in constituencies that were unable to vote.
A power vacuum may entice the military to step in and declare a coup as it did in 2006, when Yingluck's elder brother, ex-premier Thaksin Shinawatra, was deposed. Thaksin lives in exile but has remained a central -- and highly polarizing -- figure in Thailand's political strife ever since. The rural majority in the north adore him for his populist policies, such as virtually free health care, while Bangkok's elite and many in the south consider him and his family a corrupting influence on the country. Protesters say Yingluck is a puppet of her billionaire brother.
Another possibility is what is being called a "judicial coup." Analysts say the courts and the country's independent oversight agencies all tilt heavily against the Shinawatras' political machine, and Yingluck's opponents are already studying legal justifications to nullify Sunday's vote.
"I think probably we are moving toward a judicial coup of some sort," said Chris Baker, a Bangkok-based political analyst and writer. "I think we are moving toward a position in which some part of the judicial machinery, be it the Anti-Corruption Commission, the Constitutional Court, some combination of this, will somehow bring down this government."
The protests began in earnest late last year after the ruling party tried to push through an amnesty bill that would have allowed Thaksin to return from exile.
Desperate to defuse the crisis, Yingluck dissolved the lower house of Parliament in December and called new elections. But protests only intensified, and Yingluck -- now a caretaker prime minister with limited powers -- has found herself increasingly cornered. Thai courts have begun fast-tracking cases that could see Yingluck or her party banished from power, and the army has pointedly left open the possibility of intervening again if the crisis is not resolved peacefully.
Protesters have occupied half a dozen major intersections in Bangkok, barricading roads and forcing government ministries to shut down or work from backup offices.
Last week, demonstrators chained polling stations shut and stopped hundreds of thousands of people from casting advance ballots, sparking violence that left one protester dead.
This time around, the Election Commission has signaled its intention to cancel balloting in eight southern provinces -- a stronghold of the protesters who surrounded post offices there to prevent electoral materials from being delivered.
"There's no point casting your ballot when the people who will get to Parliament are the same old crooks," said Wanida Srithongphan, a 43-year-old protester from southern Thailand. "It's a waste of money."
Associated Press writers Thanyarat Doksone, Jinda Wedel, Chalida Ekvitthayavechnukul and Hau Dinh contributed to this report.