Rival Islamist groups clashed in Somalia's capital Sunday, killing at least 10 people and wounding dozens in renewed fighting in the seaside city, witnesses and hospital officials said. The fighting is the latest in days of increasing violence in Mogadishu. Abdinasir Ali, a resident of the capital, said he saw six bodies from the same family Sunday morning. They were killed when a mortar shell hit their house. Four others were killed in a nearby house and a tea shop, witnesses said. Medina hospital official Dahir Mohamed Mohamud said 60 people have been admitted this weekend. The violence pitted pro-government Islamist fighters against those allied to al-Shabab, an insurgent group that wants to topple the Western-backed government. National Security Minister Omar Hashi Aden said Sunday that sporadic violence was continuing.