KARACHI: Two siblings died after consuming poisonous substance and their parents fell unconscious in Federal B. Area, Block-14 on Sunday evening, police and rescuers said.

They said that the couple and their two children fell unconscious after taking some poisonous food.

They were shifted to the Abbasi Shaheed Hospital where Noorul Ain, 10, and her brother, Hasnain, 13, died during treatment, while their parents namely Abid Ali and Meena Abid got admitted for treatment.

The Jauharabad police said initial probe revealed that the incident occurred because of eating `poisonous food` in the home.