- Summary- Protesters call for economic boycott from Monday to Wednesday- Raisi visits Tehran University on Wednesday for Student Day- Interior ministry silent on the morality police's statusDUBAI, Dec 4 (Reuters) - Protesters in Iran called on Sunday for a three-day strike this week, stepping up pressure on authorities after the public prosecutor said the morality police whose detention of a young woman triggered months of protests had been shut down.Top Iranian officials have repeatedly said Tehran would not change the Islamic Republic's mandatory hijab policy, which requires women to dress modestly and wear headscarves, despite 11 weeks of protests against strict Islamic regulations.Hundreds of people have been killed in the unrest which erupted in September after the death in custody of Mahsa Amini, a 22-year-old Kurdish Iranian woman who was detained by the morality police for flouting the hijab rules.Protesters seeking to maintain their challenge to Iran's clerical rulers have called for a three-day economic strike and a rally to Tehran's Azadi (Freedom) Square on Wednesday, according to individual posts shared on Twitter by accounts unverified by Reuters.Similar calls for strike action and mass mobilisation have in past weeks resulted in an escalation in the unrest which has swept the country - some of the biggest anti-government protests since Iran's 1979 Islamic Revolution."