DHAKA (AFP) ― Thousands of protesters firebombed polling stations and stole ballot papers as deadly violence flared across Bangladesh on Sunday during a walkover election boycotted by the opposition.

Police said at least 11 people had been killed since late Saturday and more than 200 polling stations were set on fire or trashed by mobs in a bid by the opposition to wreck the one-sided contest.

Two of those killed were beaten to death while guarding polling stations in northern districts which bore the brunt of the violence and are regarded as opposition strongholds.

“We’ve seen thousands of protestors attack polling booths and our personnel at a number of locations with Molotov cocktails and petrol bombs,” Syed Abu Sayem, police chief of the northern Bogra district, said.

“The situation is extremely volatile,” he added after describing how thousands of ballot papers had been ceremoniously set on fire.

Most of the other victims were opposition activists who were shot by police, while a driver died of his injuries from a Molotov cocktail attack on his truck.

“We were forced to open fire after thousands of them attacked us with guns and small bombs,” said Mokbul Hossain, police chief in the northern Parbatipur town.

“It was a coordinated attack. They managed to seize some ballot papers and they were also trying to steal our weapons.”

In the capital, police confirmed at least two petrol bomb attacks on Dhaka polling stations.

Tens of thousands of troops were deployed across the country after around 150 people had been killed in the buildup, but they failed to stem the bloodshed.

The ruling Awami League has accused the main opposition Bangladesh Nationalist Party of orchestrating the violence, and has kept its leader under de facto house arrest.

With the opposition trying to enforce a general strike as part of a strategy to wreck the polls, officials admit turnout could be worse than the previous low of 26 percent in a rigged 1996 election.

AFP correspondents said there were no queues to vote, while local television reported that only a single person voted in the first three hours at one station.

The outcome of the contest is not in doubt as voting is taking place in only 147 of the 300 parliamentary constituencies. Awami League candidates or allies have a clear run in the remaining 153.

Prime Minister Sheikh Hasina’s government says it had to hold the vote after parliament‘s five-year term expired.

“Yes, the festive mood is missing but this election is essential to ensure constitutional continuity,” deputy law minister Quamrul Islam said.

The BNP, the largest of 21 parties who are refusing to take part, has called them a “scandalous farce”.

Its leader Khaleda Zia has been confined to her home for the last week, with riot police and water cannon posted outside her Dhaka residence.