A minor girl was found dead in a bathroom at Banani's Jamai Bazar slum on Wednesday.
The deceased was identified as Nusrat Jahan Mim, 4, daughter of street vendor Liton Mia.
Liton said he couldn’t find his daughter anywhere in the morning.
At one stage, a neighbour spotted her body in a bathroom of the slum around 11am.
“Someone strangulated my daughter and left her in the bathroom,” Liton said.
Jahidul Islam, a sub-inspector at Banani Police Station, said they went to the spot and took the body to Dhaka Medical College Hospital for autopsy.
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“The girl's throat had injury marks," he added.