Human rights NGO Amnesty International organised a protest in Paris in front of Saudi Arabia's embassy on Friday on the occasion of International Women's Day.
The charity encouraged cars to "honk for women's rights."
"By honking in front of the embassy of Saudi Arabia, we recall that even though obtaining the right to drive is a big step forward for Saudi women and women's rights in the country, those who fought for it are today unjustly imprisoned," Katia Roux from Amnesty International France said in a statement.
Saudi women's rights activists Loujain al-Hathloul, Iman al-Nafjan and Aziza al -Yousef were arrested in May 2018 but have yet to be presented with any charges.
More No Comment
Bikini skiing event marks end of the winter season at Sochi.
Protest in Paris metro against "the profiteers" of the pandemic
Egyptian mission discovers mortuary city in Luxor
New York exhibition celebrates Japanese artist Yayoi Kusama
Kosovo: Mannequins used in protest against virus restrictions
Russian-US crew departs to ISS for six month mission
Police fire tear gas, arrest demonstrators against Monusco in DRC
Thousands evacuated following flash floods in Indonesia
Israelis stand silent as siren marks Holocaust Day
New York Philharmonic brings music back to Lincoln Center
Bolivia Polluted Lake Clean Up
Protesters hurl stones and petrol bombs in Northern Ireland
Chinese tech company develops robo dogs
Rwanda Genocide Anniversary
'Grim reaper' artist in Berlin protests Brazil virus stance