Yemeni officials say explosion hits hospital in southern city of Aden, setting it on fire

Yemeni hospital and security officials say a powerful explosion has hit a hospital in the southern city of Aden, setting off a fire and leading to evacuations of patients. At least three people were wounded.

They say the explosion Sunday at the May 22 hospital in Mansoura district forced doctors to bring patients to a nearby mosque, while others lay on the ground in public squares.

The fighting in Yemen pits Shiite Houthi rebels and troops loyal to former President Ali Abdullah Saleh against southern separatists, local and tribal militias, Sunni Islamic militants and troops loyal to President Abed Rabbo Mansour Hadi, who is exiled in Saudi Arabia.

All officials spoke under condition of anonymity because they were not authorized to talk to reporters.