At least 16 people have been killed and more than 40 injured in a car bomb blast in the Somali capital, Mogadishu, the BBC reported on Sunday.
The car blew up in the city's southern Madina district, officials say.
The blast - which ripped through shops and food stalls - is the first major attack in the capital since the election of President Mohamed Abdullahi Mohamed earlier this month.
No group has claimed responsibility, although al-Shabab militants are likely to be the prime suspects.
On Saturday a senior al-Shabab commander vowed to target the president's supporters.