Iranian authorities have announced the launch of a new campaign on Sunday to make women wear scarves part of the dress code.

According to the American news agency Associated Press, in September of last year, a nationwide protest started after the death of 22-year-old Kurdish woman Mahsa Amini in the custody of the moral police for not wearing a scarf.

More than 500 people have died and nearly 20,000 people have been detained in the protests, which largely died down after a massive crackdown earlier this year.

Even as the protests subsided, many women continued to mock the official dress code, particularly in the capital Tehran and other cities.

Iran’s women’s dress code enforcement force saw a reduction in regular street patrols, but the rules remained unchanged throughout the crisis.

Police spokesman General Saeed Montazer Al-Mahdi says that the moral police will issue warnings to women who do not wear hijab in public places and those who do not will be detained.

Moral police officers, both male and female, patrol the streets in their distinctively marked vehicles in the capital, Tehran.

Earlier, many famous Iranian celebrities including famous directors and actors of the film industry in Iran joined the protest. Several Iranian actresses have been detained for appearing in public without a hijab or expressing support for the protests.

In the latest case, actress Azada Samadi was banned from using social media.