At least 15 people were killed after two suicide bombers walked into a restaurant in central Mogadishu in Somalia and blew themselves up.
The incident happened less than a week after militant bombers targeted the country's new president.
The election of President Hassan Sheikh Mohamud last week was hailed by his supporters as a vote for change in a country mired in conflict for more than two decades.
However the latest attacks underscore the security challenges the political newcomer faces as African forces battle to quash a five-year insurgency waged by the Islamist rebel group, al Shabaab.
The restaurant is owned by a well-known Somali businessman who returned to Somalia from Britain recently.