Aid workers die in Somali blast

Five people including two foreign aid workers have been killed in a blast in the southern Somali port of Kismayo.

Three of the five - a Kenyan doctor, a French logistics expert and a Somali driver - worked for the Dutch branch of aid agency Medicins Sans Frontieres.

A Somali boy and a reporter were also killed by the roadside bomb.

It is not yet clear who was behind the blast but police say they have made one arrest. Fighting between rival clans has increased in Kismayo recently.

Government buildings and Ethiopian troops in the port city have been attacked.

Somalia has been fragmented since 1991, and the interim government depends on foreign aid and Ethiopian military support.

The BBC's Mohammed Olad Hassan in the capital, Mogadishu, says the four were killed as they were returning to their residence from the hospital.

Kismayo has been relatively quiet compared with Mogadishu, but Islamist insurgents have threatened attacks there.

Following fierce clashes last year between insurgents and government officials, many Mogadishu residents have fled the city for other parts of the country.

But our correspondent says there is some hope of progress under new Prime Minister Nur Adde.

His government on Monday freed elders from the Hawiye clan - the largest in Mogadishu.

Some Hawiye gunmen have fought with the insurgents.