A
35-year-old
Indian man killed 14 members of his own family, including
seven children and his parents, before killing himself
, police say.Reports suggest Hasnin Warekar laced his family's food with sedatives before slitting their throats.Neighbours from the home in Thane, near
Mumbai, were alerted to the attack by the screaming of the man's sister,
who survived the attack.Police say it is still unclear why Warekar carried out the attack.Authorities are yet to question Warekar's
sister, Thane police spokesman
Gajanan Laxman Kabdule told AFP, as she
was "in deep trauma" at a city hospital."He used a big knife. He killed his parents, his sisters and his sisters' children. He slit their throats" Mr Kabdule said.The Press Trust of India news agency
reported that the youngest victim was his three-month-old daughter, and
the oldest his 55-year-old father.He also killed six of his sisters' children, the report said.The attack began in the early hours of Sunday morning, after everyone had gone to bed, he said.