At the call of All Pakistan Oil Mills Association (APOMA), Multan chapter has observed strike on Wednesday, and suspended the supply of vegetable ghee and cooking oil to their dealers and retailers. All ghee and cooking oil mills located in Multan, Bahawalpur and Dera Ghazi Khan remained closed on Wednesday to protest against the fixation of unfair price of ghee and cooking oil by the government and surprise raids of Punjab Food Authority.