(CNN)Jackie Umuhoza was coming out of a beauty salon in Kigali, the capital of Rwanda, in late November when she was grabbed by five men and bundled into a van, her family says.
Frantic friends and family raised the alarm on social media and discovered that Rwanda's security forces had detained her on charges of treason and espionage, offenses that carry sentences of up to 25 years imprisonment, according to Amnesty International, which has called for her immediate release.
Rwanda's Investigation Bureau, through its official social media account, confirmed that she had been detained.
Despite the charges, Umuhoza has still so far not appeared before a court.
Umuhoza, 25, is one of many people perceived as opponents of President Paul Kagame's government who have been abducted or disappeared.
"There are many cases in this country in which people are just kidnapped off the street by men dressed in civilian clothes, blindfolded, put in a tinted-windows vehicle, and driven off to unknown places," activist Arioste Rwigara said. "Those victims either completely disappear, or are later found dead somewhere."
Detained and interrogated
Umuhoza's father, Bishop Deo Nyirigira, was a prominent member of the ruling Rwandan Patriotic Front (RPF) party which took control of the country in the aftermath of the 1994 genocide in which nearly a million Tutsis were murdered by rival Hutus in three months.
His family says he became a target when he started to distance himself from politics and began setting up churches in the country. According to family members, Bishop Nyirigira was detained and interrogated several times by state security agencies over his political allegiance.
The clergyman fled Rwanda to neighboring Uganda in 2001 after authorities closed his churches, Nyirigira's son, Tony Ndasingwa told CNN.
The bishop, who heads the Agape Community Churches in western Uganda, is accused of supporting a foreign-based rebel group --Rwanda National Congress (RNC)-- which seeks to topple Kagame's government.
Family home raided
His daughter Jackie Umuhoza was taken by security operatives on November 27 as she left a salon to cash money their father sent to her, according to her brother.
The family home was later raided by a team of up to 20 policemen who took away phones and laptops and detained two of her sisters. The sisters were kept overnight and interrogated about their father's activities in Uganda, the family said.
Family members who have visited Umuhoza twice since her arrest three weeks ago said she was brought to the police station in a blindfold and handcuffs.
"She has been there for 21 days now a