Updated

A pregnant British mother of two has appeared in a Rwandan court for the first time since being arrested more than a month ago on treason-related charges.

Judicial spokesman Emmanuel Itamwa told The Associated Press on Thursday that the specific charges against Violette Uwamahoro will be made public after police investigations are complete.

Rights group Amnesty International says authorities are investigating the Rwandan-born Uwamohoro for revelation of state secrets, formation of an irregular armed group and offenses against the established government or president.

Uwamahoro denies all charges. She attended a bail hearing Thursday and returns to court Monday.

Amnesty International says Uwamahoro was held for more than two weeks without access to lawyers or her family in violation of Rwandan and international law. Her Rwandan-born husband is a political activist.