The official Bahrain News Agency says the Supreme Judicial Council is studying the appeal to transfer Abdulhadi al-Khawaja to Denmark. Saturday's report gave no possible timetable for a decision, but Bahrain is facing increasing pressure over the case.
Al-Khawaja and seven other opposition leaders were sentenced to life in prison last year for anti-state crimes. The nation's Shiite majority began an uprising nearly 14 months ago against the Sunni monarchy's near monopoly on power.
Al-Khawaja's daughter, Zainab, was released Saturday after being arrested earlier in the week during a protest for her father.