Yemen's former president flees after Shiite rebels let him go under international pressure.

FILE - Yemeni President Abed Rabbo Mansour Hadi speaks during his meeting with Russian President Vladimir Putin in the Novo-Ogaryovo residence outside Moscow, in this April 2, 2013 file photo. Aides close to Yemen's former president say he has fled the capital after Shiite rebels who surrounded his house let him go under international and local pressure. The aides said Saturday morning Feb. 21, 2015 that former President Abed Rabbo Mansour Hadi will go to Aden, then leave the country to receive medical treatment. (AP Photo/Natalia Kolesnikova, File) (The Associated Press)

FILE - In this May 22, 2012 file photo, then Yemeni President Abed Rabbu Mansour Hadi attends a ceremony to commemorate the 22nd anniversary of Yemen's reunification, in Sanaa, Yemen. Hadi, Yemen’s former president left the capital after Shiite rebels who surrounded his house let him go under international and local pressure, aides close to him said Saturday, Feb. 21, 2015. Hadi has been under house arrest for several weeks following a coup by Shiite Houthi rebels. Hadi arrived in Aden and later plans to leave the country to receive medical treatment, aides said. (AP Photo/Hani Mohammed, File) (The Associated Press)

FILE - In this Feb. 7, 2012 file photo, Yemen's then Vice President Abed Rabbo Mansour Hadi attends an inauguration ceremony for his presidential election campaign, in Sanaa, Yemen. Hadi, Yemen’s former president left the capital after Shiite rebels who surrounded his house let him go under international and local pressure, aides close to him said Saturday, Feb. 21, 2015. Hadi has been under house arrest for several weeks following a coup by Shiite Houthi rebels. Hadi arrived in Aden and later plans to leave the country to receive medical treatment, aides said. (AP Photo/Hani Mohammed, File) (The Associated Press)