The Nobel Peace Prize winner activist Tawakkol Karman attacked a tweet by the Emirati academic Abdul Khaliq Abdullah in which he said Yemen would not remain united.

"It will remain a unified Yemen despite your nose and the nose of Al Zayed and Al Saud," Tawakkol Karman said on her official Facebook page.

"Either a united, independent, stable and sovereign Yemen, from Socotra to Saada, or there will be no stone on stone in your glass Emirates and your aging kingdom," Karman said.