Anti-government attacks in the Somalian capital Mogadishu have led to at least 10,000 people fleeing the city, according to the UN.
Four civilians were killed after explosions in Mogadishu's main market on Sunday, as violence surrounding national reconciliation talks continues to escalate.
The BBC's Mogadishu correspondent Mohammed Olad Hassan reports that the civilians were killed by indiscriminate fire from government soldiers, following a grenade blast.
Army commander Col Forah Abdulle commented on the deaths, telling the BBC: "No soldier was killed and they did not target civilians following the explosions. They only fired in self defense."
Some 21,000 people have fled the city in the last month, with the UN refugee agency warning that civilians are increasingly likely to be caught in the crossfire of clashes between interim government officials and clan fighters.
A new report from the agency quoted a local aid worker as saying: "At any moment, a tragedy might happen to you. Even at night there is no respite as despite the curfew, you can hear automatic gun fire as well as explosions."
