Latest: 15 primary school children among those killedi n Somalia blast

The death toll from Saturday's lorry bombing in Somalia's capital has risen to more than 300, as the country reeled from the deadliest single attack it has ever experienced.

Update 11.30: Fifteen primary school children were among the over 300 people killed in Somalia's deadliest blast, an ambulance service director has said.

Abdulkadir Adam said the children were on a school bus and died when the massive lorry bomb detonated nearby.