TEXT: A Somali gestures as he walks past a dead body, left, and destroyed buildings at the scene of a blast in the capital Mogadishu, Somalia Saturday, Oct. 14, 2017. A huge explosion from a truck bomb has killed at least 20 people in Somalia's capital, police said Saturday, as shaken residents called it the most powerful blast they'd heard in years. (AP Photo/Farah Abdi Warsameh)