Rwanda’s high court on Thursday acquitted the country’s most prominent opposition figure of all charges related to her election challenge of President Paul Kagame, as judges said the prosecution failed to provide proof of insurrection and forgery.

Diane Rwigara’s case has drawn global attention as Kagame again faces pressure to give more space to critics in this highly controlled East African country.

Rwigara’s mother, Adeline, 59, also was acquitted of inciting insurrection and promoting sectarianism. Both women had denied the charges.

The courtroom, packed with diplomats and supporters, erupted in applause as Diane Rwigara and her mother were overcome with tears. Excited relatives who had prayed before the hearing for protection swarmed them with hugs.

The 37-year-old Rwigara, who had denounced the charges as politically motivated, had faced 22 years in prison if convicted. She was arrested after trying to run in last year’s election, and is the rare person to publicly criticize the government from inside the country.

“I will continue my campaign to fight for the rights of all Rwandans,” a surprised but happy Rwigara told reporters after celebrating. “This is the beginning, because there’s still a lot that needs to be done in our country.”

She said she will move ahead with her People Salvation Movement, an activist group launched shortly before her arrest to encourage Rwandans to hold their government accountable. And she thanked everyone who pressured the government to free her.

U.S. senators in recent days urged Rwanda’s government to drop the charges against her, with Sen. Dick Durbin noting “what appears to be highly questionable charges against Rwigara for seemingly running for office peacefully.”

In response, Rwanda’s justice minister told reporters that courts should not be pressured by third parties.