An explosion in Somalia's capital Mogadishu on Wednesday killed several people, the head of the city's ambulance services said.
The Islamist terror group al-Shabab claimed responsibility for the explosion, saying it was targeting "foreign officers."
The al-Qaeda-linked group controls parts of Somalia often carries out bombings at high-profile locations in the capital.
What do we know about the explosion?
The Somali National News Agency reported "unspecified casualties." But an official told Reuters news agency that at least eight people were killed.
"A car bomb targeted a convoy, including bullet proof cars using Avisione street, we do not who owns the convoy. We carried eight dead people from the scene," Abdikadir Abdirahman, director of an ambulance service, told Reuters.
Witnesses had said a UN convoy seemed to be the target of the bombing. But the UN mission in Somalia denied the reports.
AFP quoted Somali security official Mohamed Abdi as saying that the bombing "caused devastation in the area."
A witness also told AFP that the explosion was "so huge that it has destroyed most of the buildings nearby the road and vehicles passing by the area."
What is the situation in Somalia?
Wednesday's explosion came just days after Somali leaders agreed on a new timetable for long-delayed elections.
The Horn of Africa nation had been locked in a political crisis amid a feud between the prime minister and president.
The extremist group has been fighting government forces since 2007. It had controlled Mogadishu until it was pushed out by African Union forces in 2011.
Al-Shabab has often carried out attacks against military and civilian targets.
In November, al-Shabab claimed responsibility for a car bombing near a school in Mogadishu. The attack killed at least eight people.
The November attack came days after the group said it killed a prominent journalist.