Violent clashes between Bengalis and Urdu-speaking Biharis or stranded Pakistanis on Saturday left 10 people dead in Mirpur area in Dhaka over the use of firecrackers overnight to celebrate an Islamic festival.
Witnesses and police said nine people, including eight of a family, were burnt to death and another died in gunshot as a camp of Biharis was set on fire over the dispute. Several others were also wounded in the violence later.
"The clash erupted between the local Bengali youths and the Biharis on Saturday morning over exploding crackers and fireworks marking the Shab-e-Barat night...the Bengalis set fire at a house, causing the casualties," Dhaka's additional deputy police commissioner Jasim Uddin told a TV channel.
He confirmed eight deaths and said five of the deceased were children and women.
The Biharis said the rioters torched 10 houses and looted valuables. They also alleged that police fired gunshots at the camp residents critically wounding several while one of inmates later died at the state-run Dhaka Medical College Hospital (DMCH).
The neighbourhood Bengali residents said the Biharis had a brawl with police after midnight when a police patrol team asked them not to explode crackers. The racial violence erupted in the morning.
The DMCH doctors said they were treating a number of people with bullet and stab wounds alongside burn injuries. "One of the injured died from bullet wounds," a doctor said.
Witnesses said police intervened and used rubber bullets to disperse the Biharis as they took to the street at the neighbourhood while the charred bodies lied on road as the Biharis declined to hand them over to police for autopsy.
"We are asking the Biharis to hand over the bodies but they are not cooperating," a police official told newsmen at the scene. TV channels reported police could not enter the camp area but cordoned it off and blocked the roads around fearing escalation in violence.
Although not all came from the Indian state of Bihar, they are referred to as "Biharis" in Bangladesh. Thousands of Urdu-speaking Bihari Muslims, who migrated to the then East Pakistan after the 1947 partition, stay in cams in several parts of the Bangladesh since 1971 and prefer to call themselves stranded Pakistanis.
Most of the Biharis were opposed to Bangladesh's 1971 independence and waited for decades to go to Pakistan, but the subsequent governments in Islamabad declined to take them back.