Bangladeshi political parties must come together immediately to halt a spate of violence and ensure free and fair elections next month, a top US official has said.
At least 67 people have died in clashes since October when an 18-party opposition movement launched a wave of protests calling on Prime Minister Sheikh Hasina to resign before the January 5 polls.
The opposition, led by Hasina's bitter rival, Khaleda Zia, fears the premier will try to rig the vote in a country which for decades has been plagued by coups and political upheaval.
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Violence of any kind is "not acceptable" and it "must stop immediately," she added.
In the latest incident, suspected opposition activists on Wednesday derailed a train in northern Gaibandha by removing metal links holding the tracks together, killing at least three people and injuring dozens.