A huge air strike in al-Shabab-held southern Somalia has killed at least six people, including some foreigners, eyewitnesses have told the BBC.
The strike destroyed two vehicles in a convoy in an area known as K60 because it is around 60km (35 miles) south of the capital, Mogadishu, they say.
It is not clear who carried out the strike.
Al-Shabab recently announced it was joining al-Qaeda and is said to have some 200 foreign fighters.
The BBC's Mohamed Dhore in the capital says the blast, which was heard 150km away, is far bigger than any carried out by Kenyan forces which have recently moved into southern Somalia to tackle al-Shabab.
The US has previously launched air strikes against alleged al-Qaeda militants in Somalia.
Somali Prime Minister Abdiweli Mohammed Ali on Thursday called for air strikes against al-Shabab.
He was speaking at a major conference in London to discuss ways of ending two decades of conflict in Somalia.
Al-Shabab has cordoned off the site of the attack and has not yet commented.
The eyewitnesses told the BBC that some of those killed appeared to be of European or Asian origin.
bbc.com