Blast in Somalia's Mogadishu airport
Somali security forces rush to the site of a blast near the heavily fortified gates of the airport in MogadishuMohamed Abdiwahab/AFP/Getty Images

A powerful explosion has rocked the international airport in Somali capital Mogadishu, and is suspected to have killed several people.

A suicide bomber rammed his car into a UN convoy just near the airport, where the office of the Jubba Airways is located.

The exact death toll is unclear. However, local reports suggest at least four people have been killed so far.

The blast took place near a compound which houses several international organisations including the UN and western embassies.

No group has officially claimed responsibility for the bombing. However, the finger of suspicion is likely to point to the Islamist group al-Shabaab, which has been staging deadly attacks in the Kenyan-Somali border in recent days.