Survivors at a Bangladesh garment factory alleged the main exits were locked and they were not allowed to leave when fire broke out in 2012, killing 112.
Two owners of a Bangladeshi garment factory where 112 workers were killed in a 2012 fire have turned themselves in to authorities and have been jailed pending trial.
The detentions of Delawar Hossain, managing director of the Tazreen Fashion factory, and his wife, Mahmuda Akhtar, the factory's chairwoman, were ordered by a Dhaka court a month and a half after the court issued arrest warrants against the owners and managers of the factory.
They were among 13 people charged with culpable homicide.
Six of the suspects have secured bail and one other person is in jail ahead of the trial, prosecutor Anwarul Kabir said.
Four managers remain at large, Kabir said.
Investigators filed the charges after more than a year of investigation.
The owners have been accused of negligence in the fire, which gutted the factory in the Ashulia industrial district near Dhaka on November 24, 2012.
Survivors alleged that the main exits were locked and they were not allowed to leave when the fire broke out at the factory, which produced clothing for global brands such as Wal-Mart and C&A.
Bangladesh, the world's second-largest garment producer after China, has been under scrutiny for poor safety standards after the Ashulia fire and the collapse last year of the Rana Plaza building, which killed more than 1100 people on the outskirts of Dhaka.
The garment industry accounts for nearly 80 per cent of Bangladesh's exports.