Bangladesh's ruling party defied pressure Monday to open talks with the opposition after its walkover win in an election marred by unprecedented bloodshed, boycotts and low turnout.

Despite warnings that Sunday's crushing victory did not amount to a mandate, the ruling Awami League vowed to "eliminate militancy" as the death toll from election-day violence rose to 24.

The main opposition Bangladesh Nationalist Party (BNP), which refused to field candidates in the election, intensified the pressure on the government by extending a general strike until Wednesday.

Newspapers said the government was leading Bangladesh towards disaster, but one of Prime Minister Sheikh Hasina's top lieutenants ruled out early dialogue with the BNP to agree a framework for a new vote.

"We're not thinking about talks right now," Environment Minister Hasan Mahmud told AFP.

"Our top priority now is to form a government and contain violence. We have to eliminate violence and militancy to give the people a breather."

The Awami League cruised to victory in Sunday's election after the BNP and 20 other opposition parties refused to take part.

With all but a handful of seats still to be declared, the Awami League had won around 80 percent of the 300 parliamentary seats with allies mopping up the rest.

But few were in the mood to celebrate after the carnage of election day when nearly 600 polling stations were torched or trashed.

While the 24 people who died were mostly shot dead by police, the toll also included an election official and polling station security guard.

Although Bangladesh has been rocked by political violence throughout its short history, the country's leading rights monitor Ain O Salish Kendra said it was by far the deadliest election day and campaign period.

The Daily Star said the Awami League had won "a hollow victory which gives it neither a mandate nor an ethical standing to govern effectively".

"Yes, we can't say it was a universally acceptable election," Communications Minister Obaidul Kader told AFP.

"The festive atmosphere was absent and the turnout was ordinary... but you can't say it is unacceptable.

"Our next task is to form the government. We are ready to hold talks with the opposition to find a consensus, but first they have to eschew violence."

The BNP's leader Khaleda Zia has been under de facto house arrest for more than a week after mobilising supporters in a bid to derail the election.

Hasina, who first came to power in 1996 and then thrashed Zia in a 2008 comeback, has accused her arch-rival of orchestrating the violence which reached a crescendo on Sunday.

Opposition demands

The BNP in turn blames the government for the crisis after it refused demands for the election to be organised by a neutral caretaker administration as in previous years.

BNP vice president Shamsher Chowdhury said the low turnout showed the overwhelming desire for elections to be overseen by a neutral administration.

"This government must declare this election null and void and we need a new election organised by a non-party government," he told AFP.

"The government should not waste any more time."

Western powers, including the US, refused to send observers although the State Department said it would be "prepared to reengage our observation efforts ... in a more conducive environment".

Any agreement on a new vote carries huge risks for Hasina, with an eve-of-election poll showing she would have lost in a straight contest with the BNP.

Hasina came to power in 1996 after forcing Zia to hold an election re-run only weeks after the BNP chief was declared the winner of a fraud-riddled vote.

But the New Age daily said the consequences would be disastrous if the ruling party's "intransigence" continued and it did not agree to new polls.

"Besides further escalation of the political crisis and social disorder within, the country could be exposed to the wrath of the international community and agencies, and even face isolation -- economic, diplomatic and otherwise," it said.

There was no immediate figure for national turnout but the election commission's top official in Dhaka said turnout in the capital was 22.8 percent.

If that figure were replicated nationwide, it would be the lowest turnout in Bangladesh's history.

Analysts expect that the standoff will fan the flames after the deadliest year of unrest since Bangladesh broke free from Pakistan in 1971.

The former East Pakistan is the world's eighth most populous nation but also one of the poorest and the turmoil will undermine efforts to improve the lot of its population of 154 million -- a third of whom live below the poverty line.

A local rights group says more than 500 people have been killed since last January, including around 170 in election violence over the past 10 weeks.