The Punjab Food Authority (PFA) on Sunday sealed 16 food points and imposed emergency prohibition order on six while carrying out a province-wide operation against sweets shops, desi ghee and khoya production units. The operation was led by PFA Director General Irfan Memon in Lahore. He said that food safety teams not only closed down the premises but also discarded 1,200kg adulterated food which was confiscated during the daylong operation.