Brussels - Mahsa Amini, the Iranian Kurdish woman who died in custody a year ago, and billionaire Elon Musk were among a field of nominations put forward Wednesday for the EU's top rights prize.

The European Parliament's three biggest political groups each backed Amini as the recipient for this year's Sakharov Prize, making her the front-runner for the award, which will be presented in December.

The legislature's small far-right bloc was the only one to nominate Musk, the tech titan behind X, the platform formerly known as Twitter, as well as electric car company Tesla and space rocket firm SpaceX.

Elon Musk, CEO of X, leaves a U.S. Senate forum at the U.S. Capitol in Washington, Sept. 13, 2023.

Other parliamentary groupings put forward activists from Afghanistan, Georgia, Nicaragua, Poland, El Salvador and the United States as their nominations.

Amini died at age 22 on September 16, 2022, while being held by Iran's religious police for allegedly breaching the Islamic republic's strict dress code for women.

Iranian authorities, fearing the anniversary of her death could renew widespread street protests, detained her father and warned her family not to publicly mark the occasion, rights groups said.

Security forces also blocked access to the cemetery where Amini is buried.

But Persian-language channels based outside Iran showed Iranians in major cities in the country, including Tehran, yelling anti-government slogans.

Rallies also took place around the world, including in Paris, Sydney, Toronto and New York.

Demonstrators attend a protest against the Iranian regime in front of the Hotel de Ville in Paris on Sept. 16, 2023, on the first anniversary of the death of Mahsa Amini in Iran.

Amini has become emblematic of a movement in Iran calling for 'Women, Life, Freedom,' seen as the biggest challenge to the country's clerical-run government.

The EU lawmakers' nominations of Amini for the Sakharov Prize include the 'Women, Life, Freedom' movement.

Musk was put forward by the Identity and Democracy grouping in the parliament, which counts nationalistic and extreme-right lawmakers among its members.

Musk has sought to portray himself as a champion of free speech, but has been criticized by some rights groups as permitting increased anti-Semitic rhetoric and other hate speech on X.

He also has courted controversy for allowing Donald Trump, the scandal-plagued, twice-impeached former U.S. president, and other populist figures adored by the far-right back onto X.