Snipers have recently centered on the top floors of Al-Jomhori Hospital, some employees of the hospital located next to the Change Square have told Al-Ahali Newspaper.
Residents of some Sana'a neighborhoods affirmed that snipers were also displayed in some government facilities and buildings.
Residents of Sufan neighborhood in the capital Sana’a told Al-Ahali that they received warnings of supporters of a tribal sheikh, Azeez Bin Saghaeer, to evacuate their houses in anticipation of outbreak of clashes.
Bin Sagheer is among the most loyal tribal leaders to the former president Ali Abdullah Saleh. His followers engaged in violent confrontations with fighters of Sadeq Al-Ahmar last year.
Military sources said troops were displayed in Sana’a in plain clothes in some streets after the Military Committee formed under the GCC-brokered power transfer deal ordered military forces loyal to Saleh to withdraw.
Military sources said that Commander of the police, Mohammad Abdullah Al-Qawsi, a relative of Saleh, summoned all his officers and ordered them to prepare to an emergency state.
Tensions had escalated in Sana'a after the former commander of the Air Forces and half-brother of the ex-President Ali Abdullah Saleh, Mohammad Saleh Al-Ahmar, refused a dismissal decree issued by President Abdu Rabo Mansour Hadi.
His armed men imposed a siege on Sana'a International Airport and caused the closure of the airport for a complete day.
After the boldest decrees of Hadi dismissed senior military commanders and governors, Yemeni capital stayed in darkness for three constant days as supports of the former president Ali Abdullah Saleh attacked a Marib gas-operated station that provides the Capital Sana'a with power.