Two minor brothers allegedly died of ‘food poisoning’ and their mother was hospitalised after dining out at a high-end restaurant in an upscale neighbourhood of Karachi Sunday afternoon.According to SSP South Pir Muhammad Shah, the family had eaten dinner at the restaurant, located on Zamzama Boulevard, in DHA Phase V and later had some sweets at a shop outside an amusement park in Phase IV on Saturday night.Authorities have sealed the restaurant for forensic analysis as the police initiated a probe.The family fell sick soon after eating out. And when their condition deteriorated, they were shifted to a private hospital Sunday morning, where the two minors — aged one and five years — died during the course of treatment.The mother is still under treatment and medics say her condition is stable.The Sindh Food Authority sprang into action after the tragic incident. It sealed the eatery and took samples of food for forensic analysis.Authorities have also retrieved footage from the closed-circuit cameras installed at the restaurant.The action came after Sindh Governor Imran Ismail and Chief Minister Murad Ali Shah took notice of the tragedy and sought a report from the city commissioner.The chief minister also asked for a report on the last inspection of the two facilities, with details of the inspection mechanism clearly outlined.