A group of US Congress members have urged Rwandan government to drop charges against Diane Rwigara.
Rwigara, who is due to be sentenced in Rwanda this week, is a government critic who is facing up to 22 years in prison on charges of incitement and fraud.
Supporters say the charges are politically motivated and arose from Ms Rwigara’s bid to run against President Paul Kagame in last year’s elections.
US Congress member Suzanne Bonamici told the BBC’s Newsday programme: “I know that there’s been some progress made in Rwanda economically especially after the horrific genocide. And I know that there are many women in office in Rwanda, which is a positive thing.
“However, we can’t let that mask the political and civil rights violations. And if women are to be serving in office, they must be able to serve in every office, including the presidency and run for the presidency without becoming a political prisoner.”