Al-shabab officials start escaping to Yemen.

U.S. drone strike targeted a group of insurgents in southern Somalia a week ago.

Somali residents who live Somali coastal towns confirmed that some of Al-shabab officials mainly foreigners traveled from Somalia with boats going to Yemen, where Al-Qaeda has main important bases.
2010, former Al-shabab spokesman, Abu Mansur, confirmed that Al-shabab has good ties with Yemen-based al Qaeda in the Arabian Peninsula.

U.S. officials have increased their warnings that the threat from Somalia