Al Qaeda fighters attack a prison and other government buildings , freeing many prisoners . Government troops clash with the fighters , most of whom flee . Yemen is descending into chaos as a Shiite-Sunni conflict draws in regional rivals Saudi Arabia and Iran .
Al Qaeda fighters attack a prison and other government buildings , freeing many prisoners . Government troops clash with the fighters , most of whom flee . Yemen is descending into chaos as a Shia-Sunni conflict draws in regional rivals Saudi Arabia and Iran .