Rapid Action Battalion (RAB)-3 on Thursday confirmed that two siblings of Banashree of the capital’s Rampura were killed by their mother.Mufti Mahmud Khan, director of RAB’s legal and media wing told Jagonews24.com that Mahfuza Malek Jesmin confessed that she killed her children.Family or social disorder, psychological illness, extra marital affair, and grabbing of wealth and property are the main reasons behind the killing, he added.On Wednesday, parents and aunt were held from Jamalpur for interrogation over the mysterious death of two siblings in the capital’s Rampura.Earlier on Tuesday, Dhaka Medical College and Hospital morgue sources said, ‘The autopsy of the dead bodies has been completed. It was found that they had been strangulated to death.’