An Iranian court has sentenced to death a popular rapper jailed for more than a year and a half for supporting nationwide protests sparked by Mahsa Amini's death, local media reported Wednesday.

Toomaj Salehi, 33, was arrested in October 2022 after publicly backing the wave of demonstrations that erupted a month earlier, triggered by the death in custody of 22-year-old Amini.

The Iranian Kurdish woman had been detained by the morality police in Tehran over an alleged breach of the Islamic Republic's strict dress rules for women.

"Branch 1 of Isfahan Revolutionary Court... sentenced Salehi to death on the charge of corruption on Earth," the singer's lawyer Amir Raisian said, quoted by the reformist Shargh newspaper.

The court "in an unprecedented move, emphasized its independence and did not implement the Supreme Court's ruling", the lawyer said, adding that "we will certainly appeal against the sentence".

"The Supreme Court, as an appellate authority, had reviewed the case and issued a ruling to the lower court to remove the flaws in the sentence," he said.

"The fact is that the verdict of the court has clear legal conflicts.

"The contradiction with the ruling of the Supreme Court is considered the most important and at the same time the strangest part of this ruling."

The Revolutionary Court had accused Salehi of "assistance in sedition, assembly, and collusion, propaganda against the system and calling for riots", he said.

Salehi was freed on bail on November 18, Raisian said at the time, adding the Supreme Court had found "flaws in the initial sentence" of six years in prison.

The rapper was rearrested less than two weeks later.

 Hijab patrols 

 The initial accusations against Salehi included spreading "lies on the internet" and "propaganda against the state" as well as inciting people to violence and "having formed and managed illegal groups to disrupt security in cooperation with a government hostile" to Iran.

Another singer, Mehdi Yarrahi, who supported the protest movement and criticised the mandatory dress rules for women was sentenced to a total of two years and eight months in prison.

Months of unrest following Amini's death on September 16, 2022, saw hundreds of people killed including dozens of security personnel, and thousands more arrested.

Iranian officials labeled the protests "riots" and accused Tehran's foreign foes of fomenting the unrest.

Nine men have been executed in protest-related cases involving killings and other violence against security forces.

After Amini's death, a growing number of women began appearing in public across the country without adhering to the dress code, and the morality police kept a low profile.

However, since April 13, Iran's police have started to toughen controls on women who ignore the rules by deploying patrol vans on main Tehran squares, according to local media.

The media reported that police in the capital had launched a campaign codenamed "Noor", the Persian word for light, in their efforts to double down on those who break the dress code, known as hijab, which makes it mandatory for women to cover their hair and bodies in public places.

To tackle those breaking hijab laws, the authorities have also shut down cafes and restaurants where the wearing of the hijab was not respected.