SANAA, Yemen — A French-Tunisian woman working for the Red Cross has been released after nearly a year in captivity in Yemen, the International Committee of the Red Cross said.

The Red Cross said in a posting on its official Twitter account late Monday that Nourane Houas was en route to Oman after being freed. Houas was kidnapped on her way to work in Yemen’s capital Sanaa on Dec. 1 by unidentified assailants.

She appeared in a video in May asking President Francois Hollande to save her life.

Hollande “expressed his gratitude to all those who allowed for a happy ending to this ordeal,” notably the Sultan of Oman, according to a statement from Hollande’s office. He also cited the efforts of ICRC President Peter Maurer and members of his organization.

Hollande praised “Nourane Houas’ courage during her long detention,” adding that he “shares in her family’s joy” over her release.

Hollande gave no details about the circumstances of Houas’ release.

No group has claimed responsibility for the abduction. The abduction of foreigners is common in Yemen, where militant groups such as al-Qaida and tribesmen use hostages to raise funds through ransom payments or bargain for the release of prisoners.