The man identified as Chima was said to have burnt his pregnant sister after she allegedly slapped their mother.
According to reports, the incident happened at C.A.C bus stop in Okokomaiko, Ojo Local Government Area of Lagos State.
Trouble was said to have started after the woman chided her daughter identified as Victoria for leaving their residence to cohabit with men.
Victoria, it was gathered, did not like the scolds and in no time raised her hand against her mother, which forced Chima to grab a nearby keg to hit her.
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But the jerry can which contained Petroleum Motor Spirit (PMS) allegedly poured out with some of it touching Victoria, which ignited fire leaving her with severe burns.
It was learnt that the girl was initially taken to a nearby hospital on Kemberi road, Okokomaiko but doctors rejected her and referred them to Alimosho General Hospital, Igando where she was confirmed dead.