ADEN: At least 16 prisoners, including members of Al-Qaeda, escaped from a prison in the southern Yemeni city of Aden on Monday, Yemeni officials said. A security official in the south of the country, where Islamist fighters have seized chunks of an entire province, said detainees fled by digging a tunnel leading beyond the prisonÂ’s walls. Sixteen were at large, another local official said.It was the second major jailbreak involving Al-Qaeda members since June, when dozens of Al-Qaeda militants escaped from a jail in another city, Mukalla.