MOGADISHU, April 21 (Reuters) - Shells rocked Mogadishu through the night and into Saturday morning, killing more civilians and sending hundreds more fleeing the Somali capital in the biggest mass exodus since the 1991 fall of a dictator. "There are a lot of deaths. I am carrying the bodies of two family members into my car now," one distraught resident, who asked not to give his name, told Reuters. Battles since Wednesday pitting Somali and Ethiopian troops against Islamist insurgents have killed at least 131 people, according to a local rights group. The United Nations says 321,000 residents have fled since February.
