The International Committee of the Red Cross has called for the release of a French-Tunisian female staffer abducted in Yemen in December.

The agency says a video is currently circulating that shows Nourane Houas, who has been held since Dec. 1. It asked media outlets not to share the video out of respect for her family.

The group called on her captors to release her unharmed, and to show "compassion and respect for human dignity."

No group has claimed responsibility for the abduction. In May, France 24 TV said it obtained a video recorded a month earlier showing Houas asking President Francois Hollande "to save me from near death, as soon as possible."